What to do if incandescent lamps often burn out?

Main reasons for failure

The main reason why LED lamps burn out is faulty wiring.

Faulty or rotten electrical wiring in an apartment or car is the main reason why LED light bulbs burn out. Most of the cables were installed many years ago, so the parts and wires are worn out. Changing wiring is time-consuming, expensive, and not always possible.

“Human factor” - mistakes made by electricians, builders, and other craftsmen are not uncommon. Incorrect calculation of the required voltage, poor connection of contacts, selection of unsuitable elements - all this leads to arcing of the network, failures, disconnections and other problems.

“Incorrect” lighting fixtures (sconces, chandeliers, lamps) are another reason for the constant burnout of LEDs. About a third of the consumed voltage is spent on lighting, the remaining 2/3 is transformed into heat. Therefore, when developing devices, it is necessary to take into account the heating of the crystals and provide for the possibility of timely cooling.

Only a professional electrician can often understand why LED light bulbs burn out.

Faults and wiring defects

Faulty electrical wiring in the apartment

LEDs burn out due to frequent power surges and surges. Problems arise on power lines, during a thunderstorm, or directly indoors. Timely checking the integrity of the wires will help avoid unexpected breakdowns and reduce the frequency of burnout of LED lamps.

LED lamps do not work well in low voltage conditions. The quality of connections in the junction box should be checked, twists and kinks should be eliminated. Old switches and blocks can also cause energy-saving light bulbs to burn out prematurely.

Checking the chandelier, identifying defects

Faulty cartridge

Chandeliers have a simple structure and the main “problem” area is the socket. Signs of trouble:

• excessive heat;
• sparking;
• blackening and soot.

LED devices cannot be used in chandeliers with closed shades and with the ceiling bulb placed downwards. With this arrangement, heat accumulates and there are no cooling options.

Poor quality LED lamps

A low-quality LED lamp burns out quickly

One of the recommendations of electricians is not to buy devices cheaper than 120 rubles. Less expensive models are made without the possibility of cooling, stabilization, ballast capacitors and other methods of protection, and they have a flimsy body. Although such devices “without everything” are disappearing from the market.

To minimize the consequences when working with cheap mechanisms, you can install a varistor - a special device that stabilizes the voltage during power surges. Typically, a device with a response level of about 470 V is used. Additional methods are to install a filter capacitor and a fuse on the board.

If light bulbs often burn out in your apartment, then you urgently need to understand the reasons

Frequent failure of lighting elements in electrical appliances should immediately alert owners, as this may not be safe. There are several reasons why light bulbs in an apartment often burn out. By finding out what is wrong, you can solve this problem. This will help avoid dangerous consequences and save money. Where to start looking for the cause?

High voltage in the electrical network

If the voltage in the apartment is higher than 220 Volts, the lighting coil in incandescent lamps heats up much more, which causes intense evaporation of the tungsten from which it is made. As a result, the service life of the device is greatly reduced.

You can check the voltage level in the apartment with a multimeter (avometer). To get the real picture, this should be done several times during the day. Perhaps the voltage increases at a certain period, for example, in the evening, if any enterprises or organizations are connected to the power supply at home (after their work ends). During power surges, the machine (plugs) often knocks out.

Once it has been established why light bulbs often burn out, the problem can be solved in the following ways:

1. Purchase incandescent lamps with increased operating voltage (230-240 V). This parameter is indicated on the packaging and bulb base.
2. Install an incandescent lamp protection unit on each switch. These electronic devices ensure smooth switching of lighting fixtures and protect against voltage surges when turned on.
3. Connect all electrical wiring in the apartment through one or more voltage stabilizers. This will protect not only the light bulbs in the chandelier, but also all electrical appliances in the house from voltage fluctuations.
4. Replace incandescent lamps with fluorescent lamps, the service life of which does not change with increased voltage.
5. Use LED lighting elements.

LED bulbs

You should know that plugs or circuit breakers are knocked out not only during power surges, but also when the total power of connected electrical appliances exceeds the permissible value, as well as when the electrical wiring is shorted.

Malfunctions in cartridges

If the light bulbs constantly burn out in only one lamp or chandelier, and when turned on, a characteristic buzzing or crackling is periodically heard, and the brightness of the glow changes (the light flashes), then it is necessary to check the serviceability of the sockets.

In modern lamps, the maximum power of incandescent lamps used is usually limited to 40 Watts. This is explained by the fact that most cartridges are made of plastic, which burns and cracks when overheated. If the contacts loosen or burn, the bulb base will become hot and it will quickly fail.

If a malfunction is detected, it is necessary to clean and correct the contacts. If the plastic is burnt, then such cartridges must be replaced.

Under no circumstances should you use light bulbs that exceed the permitted wattage.

If the brightness of the lamp is not enough, then you can use fluorescent or LED lamps, which emit significantly more light with less energy consumption.

Broken switch

Incandescent lamps usually burn out when turned on. This is due to the current surge. If the switch contacts are faulty, or the wires under the screws are loose, they can spark, which is equivalent to turning on and off repeatedly. It is clear that this leads to rapid wear and failure of the lighting elements. Therefore, if incandescent lamps constantly burn out in electrical appliances powered by one switch, it should be checked and, if necessary, replaced.

Instead of a failed switch, it makes sense to install a dimmer. This will help get rid of the current surge when turned on, and will also make it possible to adjust the brightness of lighting devices in the room.

Problems at the connection points of residential electrical wiring

The reason why light bulbs in an apartment burn out may be faulty apartment wiring. First of all, you should check the quality of the connection in the electrical panel and tighten the screws at the places where the wires are connected. If traffic jams or machines are constantly knocked out, you need to check whether their power matches the energy consumed. Faulty and low-power ones must be replaced.

You cannot replace devices on the inter-apartment electrical panel yourself; this work can only be performed by housing and communal services electricians.

Then you should inspect the connections in the junction boxes. If wires with blackened or melted insulation are found, it means that the contacts in this connection have oxidized or become loose and need to be tightened. If twisting was used as a connection, it is better to redo it by installing special connectors. This should only be done on completely de-energized electrical wiring. This is especially important if the electrical wiring in the apartment is made of aluminum wires, which quickly oxidize in places where they are twisted.

How LED works

Light is emitted when an electric current passes through the pn junction of a semiconductor.

The LED passes current of direct polarity and blocks reverse current from the voltage source. It is selected experimentally, taking into account the magnitude of the luminous flux and thermal processes.

The magnitude of the applied voltage to the electrodes (anode and cathode) is limited by the capabilities of the semiconductor - the internal electrical resistance of the pn junction.

Output characteristics

An LED lamp consists of a large number of LEDs combined in one housing and connected to a voltage source via a built-in power supply.

Together they provide:

• light output;
• color temperature;
• a certain angle of dispersion of the light flux.

These characteristics are published in a separate article. Their quality depends on the operating conditions and design of the lamp.

Reasons for frequent burnout of LED lamps

It's one thing when incandescent lamps burn out, the cost of which is quite low. In this case, we, as a rule, do not attach much importance to the problem and simply replace the burnt-out products with new ones.

However, things are completely different if the LED bulb in the lamp often burns out, the cost of which is several times higher. In this case, there is no point in resigning yourself, because... the cost of frequent replacement can put a significant dent in your budget. It is necessary to understand the possible causes of the malfunction and eliminate them.

Next, we will tell you why LED lamps in an apartment burn out and what to do to solve the problem.

Poor quality products

Unfortunately, the main reason for LED burnout is poor build quality. In our search for cheap LED products, we often fall for the trick of Chinese brands - bright light bulbs that, as advertising, shine quite well on the stand and at the same time have a stylish design.

The fact is that most LED products from China are manufactured in such a budget version that the light bulbs burn out due to the lack of elements for protecting the LEDs from surge current in the driver circuit.

As a result, during voltage surges, the current increases, due to which the LEDs heat up above the nominal temperature and, of course, burn out.

In addition, let’s return to one more reason, which is closely related to the advertising move when demonstrating the glow of a light bulb on a stand.

When choosing an LED lamp for the home, we all try to find an option that will shine well and at the same time be cheap.

That is why some manufacturers select resistors and capacitors in light bulbs in such a way that the LEDs work at full power, but brightly. As a result, the service life of the products is quickly reduced and they burn out.

Also, another reason for the frequent combustion of LED lamps is a defect in the configuration and a violation of the soldering technology, which is typical for cheap Chinese products.

You can verify the above by watching these videos:

What else could it be?

When we looked at the technical characteristics of LED lamps, we pointed to such a parameter as the number of switches. In LED light bulbs, as a rule, the number of switches declared by the manufacturer is unlimited.

But in practice, frequent turning on of the light affects the service life of the LEDs, and if you turn on the light switch in the room dozens of times a day, then it may well be that the lamps burn out for this reason, especially if they are Chinese.

We should also talk about backlit switches.

If the chandelier is controlled by such a switch, then most likely you have noticed that the LED light bulb sometimes flickers or even lights up dimly when the light is off.

Well, the last, rarely encountered situation is when 12-volt LEDs in spotlights burn out.

Here the situation may be either in the wrong backlight connection diagram or in the power supply (incorrectly selected power or poor quality).

We provided the correct wiring diagrams for spotlights. As for the power supply, it must be selected with a power reserve (at least 20%).

We draw your attention to the fact that sometimes apartment owners think that all the 12-volt LED lamps in their suspended ceiling have burned out. First of all, it is better to check the power supply, because

Most likely, it burned out, not the light bulbs!

These are actually all the reasons why LED products burn out.

We hope our information was useful to you and now you know why LED lamps burn out, and what to do in this case! We draw your attention to an important nuance - each lamp has its own warranty period, so if in your case the burnout occurred immediately after purchase due to poor build quality, you can safely go to where you bought it and solve this problem with the seller!

It will be interesting to read:

Specific reasons for different types of lamps

Bulbs with filament most often burn out due to high network voltage. A cooled coil cannot withstand high temperatures and gradually collapses. Another common cause of failure is the use of low-quality plastic sockets in lamps. Most of them are suitable for lamps up to 60 W; if the power is higher, the socket will deform faster and the contacts will be damaged. Melted wire connections in the switch or poor quality of this device also provoke burnout of lamps. Poor contacts in the lighting device, junction box or shield also interfere with the operation of the lamp. Other common causes of failure of lighting elements with a tungsten spiral: frequent switching on, use at low temperatures, vibration, manufacturing defects.

Halogen light bulbs regularly burn out because the conductors that go to the place where the lamp is used are not connected correctly. Another common cause is touching the flask with bare hands. Grease stains remain on the lamp, then darkening appears in these areas and the housing gradually collapses.

If a fluorescent lamp burns out, then look for a problem in the electrical wiring: incorrect connection of the wires, loose contacts. In addition, the lighting element may burn out if it overheats. This usually happens if it is screwed into a closed lampshade and is often turned on or off.

LED light bulbs burn out for the following reasons:

1. Weak connections in the junction box, sockets, and in the area from the chandelier to the wiring.
2. Poor quality diodes, lack of a driver in the system that smoothes out voltage surges.
3. The use of backlit switches in the same circuit with LED lamps. Then the lamp may flicker even after being turned off.
4. Increased mains voltage.

To protect LED bulbs from current surges, it is recommended to connect a stabilizer to it.

Poor wiring connection

The quality of contact in the electrical wiring has a great influence on the service life of any lamp, as well as any electrical appliance. The most common reason for light bulbs to burn out is a poorly made or weakened connection at the junction of the wires over time. This problem, in most cases, occurs if the electrical wiring in an apartment or house is made of aluminum wire. If all the wires are in order, then it is likely that the problem is in the contact. In this case, you need to diagnose all the electrical wiring in the house as quickly as possible, and you need to start from the place where the lamp is connected. Today, electrical goods stores sell various modern wire connectors, the use of which significantly improves the performance of all wiring in the apartment. If you do not have special skills or relevant experience, then this work is best left to a professional electrician.

Reasons why incandescent lamps burn out so quickly.

1. High voltage in the network.

One of the main factors influencing the lifespan of incandescent lamps is the quality of the voltage in the electrical network.

Increased voltage has a very adverse effect on the life of the lamps, since in this case the tungsten filament is intensely heated, as a result of which tungsten atoms evaporate and settle on the walls of the bulb, causing it to darken, the filament gradually becomes thinner and, ultimately, breaks.

What to do if there is always high stable voltage in the apartment?

Stores usually sell 220-230 V incandescent lamps, but you can also find 230-240 V light bulbs and use them in your apartment. Another solution is to use contact fluorescent lamps, which work well even at higher voltages.

You can purchase a voltage stabilizer. It is very convenient to install it at the stage of apartment renovation. To do this, you need to separate the lighting network of your apartment into one or several groups and connect them to the network through a voltage stabilizer.

2. Poor quality contacts in lamp sockets, burnt sockets.

Traditionally, domestic lamps use plastic sockets, and low-quality plastic is used for inexpensive lamps. Ceramic cartridges are used less frequently.

But plastic sockets are designed for lamps with a power of up to 40 W; with higher power lamps, they crack and gradually burn out. With use, the contacts in the sockets oxidize and burn, which leads to additional heating of the incandescent lamps and their failure.

If your light bulbs keep burning out

in one chandelier, sometimes a crackling sound is heard, accompanied by a change in the brightness of the lamp, then the reason may lie precisely in insufficiently reliable contacts in the lamp sockets.

It is necessary to clean the contacts and replace burnt cartridges, but it is best to purchase a new lamp and install it. Never use lamps with a higher power than specified in the instructions!

3. Poor quality switch or switch with burnt contacts.

The reason may also be a poor-quality switch. Try to disassemble the switch and check if the contacts are burnt. Look for blackening where the wires connect to the switch. If sparking is observed, the contacts are burnt or the wires at the connections are blackened, then such a switch should be replaced.

It is best to install a dimmer with which you can adjust the brightness of the lighting. It will protect your light bulbs from sudden fluctuations in current when turned on.

4. Insufficiently reliable connection of the chandelier wires, weak contacts in junction boxes or the apartment panel.

All contacts must be of high quality and reliable, since unreliable and weakened contacts over time are the reason that light bulbs burn out

and the stable operation of electrical appliances is disrupted. Contacts are especially often broken when aluminum wiring is installed in the apartment.

How to disassemble the LED module?

To repair a faulty lamp, you must first dismantle it. There are no special difficulties in performing the procedure

But to avoid problems, you need to be careful and show skill.

Some lamp components cannot be repaired, so they must be handled with care during the disassembly stage. The circuit board requires special attention.

Method 1: unscrewing

Being a fragile device, the lamp can fail if disassembled incorrectly. To prevent this, you need to follow the instructions and follow some rules.

To dismantle the diffuser dome, you need to take the product by the edges with both hands and gradually separate the upper part from the body. The problem is solved without much difficulty, because the connecting sealant layer has a minimum thickness.

Next you will need to perform the most difficult part of the work - separating the plate from the body. The problem is solved by removing the bolts securing the structure. The heads of these fasteners are extremely tiny, so special precision screwdrivers must be used to unscrew them.

After this, you should separate the plate from the radiator using a sharp flat object

You can use jewelry tweezers as this, which allows you to carefully pry the edge of the plate and then remove it entirely

Method 2: Heating with a hairdryer

The next option involves using a hair dryer to heat the lamp body. It may become popular when disassembling devices with thick glass that cannot be removed with a screwdriver.

After heat treatment, the LED module is easily removed from the base. When exposed to hot air, the components expand and the adhesive becomes elastic. As a result, the product breaks into several parts.

If you don't have a hairdryer, you can use another method. It consists of using a solvent, an awl and a medical syringe with a needle.

The awl is carefully drawn along the edge, and then the solvent is applied using a syringe. After a few minutes, the sealant becomes pliable and the dome can be unscrewed without additional effort.

Other manipulations are carried out according to the same instructions as in the previous method.

Reasons for frequent burnout of LED light bulbs

The main factors influencing the service life of LED lamps:

• quality of product manufacturing;
• condition of electrical wiring and connection points;
• voltage stability in the power supply circuit;
• the presence of a radiator for uniform cooling of the LEDs;
• frequent turning on and off of lamps;
• using a switch with a control indicator.

Low quality of the lamps themselves

A common reason why LED light bulbs burn out is poor workmanship. To reduce product costs, power stabilization controllers are excluded from the design, which leads to increased load on the LEDs. Since, to save money, the lamp does not have a radiator, the elements overheat and degrade. The lamp will work for several hundred or thousand hours, but will fail before the end of its declared life.

Some manufacturers achieve maximum brightness by adjusting the voltage on the LEDs. The elements work to the limit, which causes increased heat generation and structural destruction. An additional problem in this case is the insufficient amount of solder and special paste for heat removal.

Faults and wiring defects

If LED lights burn out quickly under normal operating conditions, you will need to check the condition of the electrical wiring in the room. It is necessary to find distribution boxes located on the walls under the ceiling. At the same time, the connection points between the electrical wiring and the lamp sockets are inspected. If melted insulation is detected, it is necessary to cut out the damaged area and connect the cables with twisting or spring terminals (for example, Wago).

Unstable voltage in the network

LED lamps are designed for a voltage of 220 V (alternating current); when the voltage changes, the devices blink and burn out. To ensure stable voltage in the power circuit, a built-in driver is used, which is the first to fail.

If lamps designed for a voltage of 12 V are installed in the room, then in the absence of backlight it is necessary to check the functionality of the power supply.

Insufficient heat dissipation

When installing lamps in a chandelier, it is necessary to ensure heat dissipation. LEDs do not heat up as intensely as the filament of an incandescent lamp, but to ensure a factory resource, a radiator is required. Ceramic sockets in the chandelier allow you to partially reduce the temperature, but it is recommended to purchase lamps with an integrated radiator. The element, made of ceramic or light aluminum alloy, is located on the bottom of the lamp; there are fins on the surface to increase the cooling surface area.

In lamps with reduced power, the radiator is located inside the bulb; it is impossible to visually check its presence. Cheap products use a heat exchanger with reduced dimensions that does not provide cooling for the LEDs. To determine the size of the radiator, you can weigh the lamp on a scale or in your hand. It is not recommended to purchase light lamps. An additional problem is the insufficient layer of paste located between the diode and the radiator.

Frequently turning lamps on and off

LED lighting fixtures often burn out when power is applied due to a power surge. As a result, the electronic component or conductive paths printed on the printed circuit board are destroyed. Since LED lamps are energy efficient, it is not recommended to turn the power on and off frequently.

An additional challenge are switches with integrated LEDs. When using LED standard bulbs, it is recommended to remove such a switch, since a low current flows in the circuit, which can ignite the LEDs. Constant illumination negatively affects the electronic ballast, which prematurely fails. If the user intends to keep the switch with an indicator, then it is necessary to install an additional 50 kOhm resistor.

Main causes of burnout

The reasons can be different - from power surges, poor-quality contacts in the electrical circuit to frequent switching on/off of devices, high temperatures, and vibrations.

Power surges

The industrial voltage is 220 V. If the actual value exceeds the required value, the tungsten filament overheats significantly, which shortens its service life.

A multimeter is used to check the voltage. Measure the value two to three times a day, since jumps are possible during a certain period. For example, this happens in the evenings, when people return from work or businesses connect to the electrical network at home. Another sign of high voltage is that parallel to the burnout of the light bulbs, the plugs and circuit breakers are knocked out.

If you detect power surges in the network, proceed as follows:

• buy lamps designed for higher voltage - for 230 - 240 V (look for the value on the packaging or on the base of the product);
• additionally install protective blocks for incandescent lamps on each switch (protect against overvoltage, ensure smooth switching);
• use a stabilizer installed in the first distribution box of the apartment (protects electrical appliances in the house);
• buy fluorescent lamps that are not affected by power surges;
• use LED products.

Important! Knocking out traffic jams and machines is not always associated with increased voltage. This also happens in cases where the total power of electrical appliances connected to the network exceeds the permissible limit. Don't forget to short circuit the electrical wiring.

Poor quality contacts in the socket

Old domestic lamps used plastic sockets, and the cheaper the product, the lower the quality of the material itself. Ceramic cartridges are better, but are used less often. These lamps are designed for light bulbs up to 40 W. If you take a 60 W lamp, over time the socket will begin to crack. This will lead to oxidation and burning of the contacts. Poor contacts are another reason for the lamp to overheat and burn out.

If the light bulbs constantly burn out in one lighting fixture, and when the light is on, you hear extraneous sounds with a change in brightness, look for the cause in poor-quality contacts on the sockets. Clean them, replace burnt cartridges or the entire lamp. Avoid using devices with lamps of higher power than indicated in the lamp data sheet.

If the conditions are met, there is not enough light, switch to using luminescent products. Most modern lighting devices set an important requirement on the sockets - the power of the lamps used is not higher than 40 V. There is no need to limit the luminous flux and illumination of the room - it is possible to use fluorescent lamps.

Correct wire connection

The next reason is a wiring fault. Check the connections inside the electrical panel and tighten the screws that are responsible for securely fastening the cables.

If plugs and circuit breakers are knocked out when a light bulb burns out, be sure to check the compliance of the power of electrical appliances in the house with the electricity consumed. If a malfunction or insufficient power parameters are detected, the identified products must be replaced.

Examine the connections in each junction box of the apartment (private house). Pay attention to blackened wires and melted areas. Clean such contacts and tighten loose connections. Be sure to replace twisted wires with high-quality connectors.

Avoid galvanic pairs, when two or more cables of different metals are connected by twisting. In such areas, severe overheating occurs. If such cases cannot be avoided, use pads.

Problem switch

The next step is to check the switches. If such an element does not work correctly, incandescent lamps may also burn out. Disassemble and inspect the condition of the contact elements. If you notice sparks, carbon deposits on the contacts, or traces of blackness on the wires clamped with screws, get rid of the switch and install a new one.

If light bulbs turned on by one button burn out, do not disassemble the switch. Replace with a new one, additionally install a dimmer that provides smooth switching and the ability to change brightness.

Switches vary in terms of service life - replace the electrical product in a timely manner.

Poor quality lamp

Incandescent lamps from domestic manufacturers are significantly inferior in quality to their foreign counterparts. Lamps with a power of up to 60 W, most often used in everyday life, burn out. If previously domestic products were better in price, now their cost is comparable to devices from Osram and Philips factories. In this case, give preference to the latter group.

There are various recommendations for choosing lamps, but before you run to the store for foreign analogues, make sure that they are the problem.

Frequent activation

When turned off, the tungsten filament is cold, which is why its resistance is lower than that of the lamp when it is on (with a heated filament). When switched on, the current flowing through the electrical product is significantly higher. If frequent switching on/off occurs, the starting current will lead to rapid evaporation and breaking of the filament.

Vibration and mechanical stress

Constant vibrations, shocks and other mechanical impacts lead to rapid burnout of incandescent lamps. The way out of the situation is to replace conventional products with LED or compact fluorescent ones.

Which lamps will last long?

When selecting LED light sources for a living space, it is recommended to purchase products manufactured by large companies (for example, Wolta, Osram or Philips). Products from Chinese manufacturers Camelion or Gauss do not differ in durability from lamps produced by European companies. It should be taken into account that European manufacturers have brought the assembly of LED lamps to China

When purchasing, you need to pay attention to the declared service life and light temperature

There are products on the market from Ecola and Newera, which are claimed to be Russian developments. The products are assembled in China, and the manufacturers provide a 2-year warranty on the lamps. According to user reviews, these LED lamps are highly reliable and correspond to the stated parameters.

Purchasing products on AliExpress allows you to save money, but this trading platform often offers low-quality products. Before purchasing, it is recommended that you read the reviews left by previous customers. It is necessary to take into account that high-quality products are sold at prices comparable to the cost of LED lamps in retail stores in Russia.

How to prevent light bulbs from burning out frequently

Protection unit for halogen and incandescent lamps
There are several preventive measures that will extend the service life of lamps at home.

• Use diodes to protect lamps. As practice shows, diodes have virtually no effect on the quality of lighting, and their service life is significantly extended.
• Regular maintenance of the cartridge. It is recommended to periodically inspect and protect the contacts and, if necessary, tighten the connections.
• If possible, reduce the influence of vibration and shock, especially when it comes to incandescent lamps.

Electricians with many years of experience recommend installing light bulbs of the same power in chandeliers, this ensures even distribution of the load.

Checking the chandelier, identifying defects

If the wires are in good condition as a result of the test, you should check why the LED bulbs in the chandelier burn out. It is quite possible that the reason lies precisely in the unsatisfactory technical condition of the lamp. Since LED light bulbs are highly sensitive to voltage changes, you must first check the quality of the connection of the chandelier to the wires of your home network.

After this, you need to check the lamp itself. The design and electrical circuits of most chandeliers are quite simple, which makes it easy to understand the problem and identify a possible malfunction. At the very beginning of the audit, it is recommended to check the contacts located in the cartridges. They should not only be inspected, but also be cleaned.

Particular attention should be paid to the central contact, commonly called the tongue. If necessary, it bends upward, which significantly increases the reliability of the connection between the contacts and the light bulb.

Problematic cartridge contacts

Poor quality plastic from which the sockets are made can cause damage to the lamp. Often the contact in the cartridge may come loose or burn out. In this case, the light bulbs burn out in only one chandelier or socket. During operation, you can hear a buzzing or crackling sound, and possibly flashing.

If you want to know how to solve the problem of burnout in this situation, we offer several options:

• Having de-energized the lamp and inspected the socket, it is necessary to identify contacts with carbon deposits and clean them;
• using a screwdriver with a rubber handle, press out the contact, ensuring a better fit to the base;
• If the cartridge is damaged or deformed, it should be replaced.

It is important to remember that modern plastic or ceramic cartridges have a power limit of 40-60 watts. Therefore, choose light bulbs with appropriate characteristics for them. Exceeding the parameters leads to overheating and cracking of the structure.

One of the reasons is the voltage converter

Many high-quality LED lamps produced by well-known companies are equipped with quite complex electronic circuits. The main function of these devices is to convert 220 volt AC network voltage into DC voltage, the value of which is required for this type of LEDs. In addition, they qualitatively smooth out the resulting pulsations.

A standard board usually consists of 1 or 2 chips and other elements. This design significantly increases the life of the lamps, but at the same time increases their cost. Therefore, in order to increase product sales, unscrupulous manufacturers replace normal complex circuits with so-called ballast, which was already mentioned earlier. In this regard, many consumers during operation have a logical question about why LED light bulbs quickly burn out.

The main reason is current surges, which cannot be leveled out with simple ballast. As a result, the structure of the semiconductor is disrupted, and the luminous layer - the phosphor - becomes inoperative. Therefore, it is recommended to buy products only from well-known manufacturers that are reliable and of high quality.

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Switch faults

The switches themselves can wear out during operation. The weak point in their design will be the contacts, which can burn. In this case, the light blinks periodically and then goes out.

What to do if the lamp burns out? Faulty contacts, loose or loose connections under the screw can even lead to sparking. If the lamp burns out when turned on, the problem often lies in the switch. It should be checked.

The presence of blackened or melted elements requires immediate replacement of the structure. In this case, it is advisable to additionally install a dimmer during a new installation.

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Low quality products

Most LED lamps from Chinese brands burn out due to poor quality assembly. Under the stylish appearance of the product, several unpleasant surprises may be hidden:

• a cheap electrolytic capacitor that gradually loses capacity when operating in a high-temperature environment;
• lack of high-quality heat removal;
• lack of a good driver;
• “cold soldering” of contact pads, etc.

If you look inside the body of a burnt-out LED lamp, you will find that the thermal paste is only partially applied to the aluminum substrate. As a result, heat transfer from the board to the radiator occurs unevenly, which leads to overheating of the emitting SMD element, which is in the worst temperature regime.

Clever Chinese engineers calculate the ballast power supply so that the output voltage on it is slightly higher than the rated one. The initial brightness of such a product impresses the buyer, which means the commercial goal has been achieved. In the best case, after several months of operation, the luminous flux will decrease by 30%, in the worst case, the lamp will burn out.

The listed facts indicate a deliberate deterioration of the technical characteristics of the product by the manufacturer. After all, if everyone switches to high-quality LED lighting, then who will buy the lamps?

Electrical wiring problems

But the main factor that affects the service life of an LED lamp is the instability of the voltage in the electrical network. It’s clear how increased voltage affects a regular incandescent lamp. The tungsten filament overheats, the structure of the filament is destroyed, and as a result the lamp fails.

A problem with electrical wiring can be detected by the frequent burnout of lamps in a certain place. In this case, first of all you need to check the condition of the wire that powers the LED. It must be insulated and free of visible damage. If the need arises, the wire can be connected using WAGO reusable terminal blocks. They have special levers that allow you to quickly disconnect the circuits and test each element separately.

If, when inspecting the wiring, you do not find a defect, then you should carefully inspect the cartridge. If there is visible damage or signs of burning of the wires, then such a cartridge must be replaced. To be sure of the long service life of the LED lamp, it is better to immediately replace suspicious wires and sockets.

Recommendations for extending the life of incandescent lamps

The service life of light bulbs depends on the correct construction of the electrical wiring, the device used, power surges, mechanical shocks, temperature and the switch.

Prolonged operation of the product leads to overheating of the tungsten filament and its gradual evaporation. Because of this, the diameter decreases and the thread sooner or later burns out (breaks). The higher the heating temperature of the tungsten filament, the brighter the glow will be, characterized by a faster evaporation process and a shorter service life.

On average, the lamp is designed to operate for 1000 hours. After approximately 750 hours, the luminous flux decreases by 15%.

A slight increase in network voltage (about 5%) reduces the service life by half. This can be verified by observing lighting products installed on staircase landings, which constantly operate at night, when there is minimal load on the electrical network, which leads to an increase in voltage.

Since the tungsten filament is very cool when turned off, it is advisable to warm it up with a lower current before turning on the incandescent lamp at full power. To do this, install dimmers.

Rated voltage

Modern products do not indicate a specific voltage, but a certain range - from 215 to 225, 230 to 240 V. If the lamp is operated within this range, good luminous flux and durability are ensured.

This approach of manufacturers is associated with the difference in operating voltage of the network in its different sections. Near the source (substation) it will be higher than far from it. For this reason, you need to select light bulbs in accordance with the apartment’s network voltage. Measure it with a multimeter and if it turns out that the parameter is 230 V, buy incandescent lamps with a range from 30 to 240 V.

Checking the cartridge

If lamps in the same socket burn out frequently, check its operating temperature. If it is hot, disassemble the product, clean and bend the central and side contacts, and then tighten the wires going to the cartridge. If light bulbs in a chandelier often burn out, try using products of the same power.

Application of a protective diode

Recently, electricians have been using diodes installed in front of incandescent lamps on staircase landings. The quality of the voltage does not decrease, and the service life increases. If you connect a resistor in series with the diode, the light bulb will last for many years.

Defects in electrical wiring or electrical appliance

LEDs become unusable due to constant power surges. Variations can occur due to disruption of power lines or improperly laid in-house wiring.

Old or incorrectly routed wiring

Fluorescent energy-saving and LED light bulbs do not respond well to a decrease in voltage in the network, so before using them in residential lighting, it is necessary to check the insulation in the distribution boxes and in the lamp connections.

If possible, you need to replace the twists with complete wiring. It is convenient to use terminal blocks for connection, from which you can remove the metal tip of the wire and reconnect without damaging its integrity.

Problematic operation of the lamp

Another common cause of light bulbs burning out is problems with the lamp itself. First of all, before screwing in the lamp, you need to check the condition of the lighting fixture:

• inspect the contacts in the cartridge. Due to high temperatures and chemical reactions, plaque may form in the base, which must be cleaned with a sharp object or sandpaper;
• if necessary, bend the tongue, which ensures good contact of the socket with the lamp base.

Increased mains voltage

No one can say that the voltage in the network exactly corresponds to the nominal 220 V. Moreover, GOSTs allow the possibility of deviation of the actual parameter by 10% up or down. The technical characteristics of the lamp itself do not always allow for the possibility of such surges, and increasing the voltage to 240 V often leads to negative consequences for the lighting device.

At the same time, it has been proven that a deviation of the actual network voltage by 1% from the permissible one indicated on the box or in the data sheet of the lamp leads to a drop in operating time by 14%.

No one has any problems answering the question of how to understand that a lamp has burned out. In everyday life, we can simply look at an incandescent lamp and evaluate the integrity of the tungsten filament. After all, with regular power surges, it overheats and the tungsten coating evaporates. Over time, a break occurs.

A dark coating is also often visible on the inside of the flask. When the glass has a special coating, the lamp can be screwed into another socket. If it doesn't light up, you'll have further proof.

In such a situation, several measures can be taken:

• Change the light bulb to a model with a higher maximum permissible voltage. Its size can be found on the box and base.
• Purchase and install protective blocks for smooth activation.
• Connect the wiring using voltage stabilizers.
• Switch to a different type of lamp, such as fluorescent or LED.

Possible reasons

Probably everyone knows the saying “The miser pays twice.” This is where the first of the possible reasons lies. Many will say that in order to save money they buy LED lamps, but the problem is in the correct choice of these devices. Poor workmanship is present in half of the lamps sold for sale. The fact is that manufacturers, in order to attract more customers, lower the price of the lamp, but accordingly they themselves use low-quality parts. Sometimes, manufacturers make light bulbs too bright, the light from them is very beautiful, but there is no protection against excess luminous flux, which is why burnout occurs.

Most LED lights are powered by a power supply or LED paths. The undoubted advantage of the power supply is that it can be used as an electrical ballast. If the power supply is not configured correctly, the lighting fixture will always burn out. This happens because the power that passes through the unit is less than necessary.

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On the landing, the residents of the house rarely turned off the lamp, so the spiral burned out every time. Expenses, of course, were small, but it was necessary to set a schedule for changing light bulbs for residents, and visit electrical goods stores in search of light bulbs. I shared my sadness with Nikitich. Nikitich is my neighbor, a master magician.

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WATCH THE VIDEO ON THE TOPIC: Connecting a light bulb through a diode

Does the headlight bulb often burn out? Solid oil to the rescue!

Please tell me in the entrance to the site the lamps often burn out once a week I heard that you can put something like a diode in front of the lamp and the lamp will work longer with less brightness in the entrance there is a lot of light, no need to help, otherwise you yourself understand the crisis.

The topic has been added to the "guide". It is high time. Because issues of light bulbs burning out in the entrance periodically pop up on the forum. And now there shouldn’t be any new topics on this subject, but everything has already been discussed in the indicated one.

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Incandescent lamp

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diode and the lamp will work longer with less brightness (you don’t need a lot of light in the entrance) help, otherwise you yourself understand the crisis.

Why do incandescent light bulbs burn out?

It is also a holiday for those who remain in responsible positions in the energy industry today. It is symbolic that the holiday coincides with the shortest day and longest night of the year, when the work of power engineers is most noticeable. The room becomes gloomy. I go up to such a simple and familiar switch and - lo and behold! Has this miracle always happened? And who came up with it? In ancient times, people illuminated their homes with torches, then they invented the kerosene lamp.

How to prevent incandescent light bulbs from burning out?

Currently, in Russia there are rules according to which low-beam headlights or daytime running lights (DRLs) must be turned on while vehicles are moving, even during daylight hours. And at night the need for good lighting increases even more - this is already a safety issue. But it happens that recently purchased lamps burn out quite quickly. What could be the reason?

In the medium term, Russian enterprises may face new risks, illustrating the universality of the familiar saying about good intentions and their disastrous results. Electrical networks, Electricity, Power.

DIY LED lamp repair

Burnt-out LEDs often lead to failure of the lighting fixture. Sometimes the problem can be determined after dismantling the case. But there are exceptions when externally the components appear to be working properly. Do-it-yourself LED lamp repair begins only after identifying the problem.

Replacing light bulb LEDs

To replace the lamp's LEDs, it is not necessary to use soldering equipment. Sometimes it is enough to heat the board with a hair dryer, as a result of which the soldering area will become soft and pliable, and the diode will be easy to reach with tweezers.

A working light source is placed on the heated area, and after the board has cooled, it is firmly fixed. When disassembling the device, you need to monitor the location of the element to avoid mistakes during reassembly.

LED lamp driver repair

Repairing an LED lamp with your own hands is not difficult. Often this requires troubleshooting problems in the driver that arise due to a burnt out resistor or capacitor.

If your home workshop has multimeters and other measuring devices, the diagnosis will be performed without any difficulties. If a breakdown is determined, the part is replaced with a working model with similar performance characteristics.

How to check and replace the power supply?

If the lamp is installed in a technical room with a high level of humidity, it is equipped with stabilizing power supplies that reduce the voltage to safe values. With use or under the influence of negative factors, the stabilizer fails.

To replace it, you need to remove the voltage by disconnecting the circuit in the distribution panel.

Eliminating blinking LED lamps

Often, LED lamp repair is intended to eliminate the flickering problem. An unpleasant phenomenon occurs as a result of interruption of electrical contact. Determining the cause with a magnifying glass is problematic, so all that remains is to re-solder the sockets, which requires some effort and time. But, given the simplicity of the scheme, you can carry out the necessary manipulations on your own.

What determines the service life of lighting fixtures?

Lamps can burn out quickly due to the poor quality of the materials used and the harmful effects of external factors. If the reasons are not related to improper product quality, the service life depends on the characteristics of the wiring and its components, as well as the operating mode.

Network voltage level

A decrease or increase in voltage beyond acceptable limits is the most common cause of failure of electrical appliances. GOST 13109-97 states that the voltage of a single-phase network should be in the range of 198-242 V. The error should be no more than 10%.

The rated voltage of incandescent lamps is 240 V. To prevent rapid combustion, it is necessary to additionally install stabilizers that will help protect lighting fixtures and expensive household appliances.

Each switch can be equipped with a special protective block, which prevents sudden voltage drops that occur when turned on and during operation.

Frequent activation

When the lighting fixture is switched off, the filament is cooled. When the lamp is turned on, the resistance is lower compared to a hot filament. Turning the lights on and off in the room too frequently reduces the life of all types of lamps due to the integrity and damage of the filament under the influence of inrush current.

Poor quality cartridges

Faulty cartridge with poor contacts
A problem that can be solved on your own is loose contacts in the cartridge. When replacing an old lamp with a new one, you need to carefully inspect the base and the inside of the socket. You should not ignore the appearance of soot and areas with specific darkening.

When using a screw-type cartridge, you need to turn off the power supply to the house and make sure that there is no voltage. After this, use a special flat screwdriver with a rubberized handle to carefully bend the central petal contact. Such a simple manipulation will improve contacts with the lamp and minimize the likelihood of repeated combustion.

The cartridges are made of plastic or ceramic. The second option is more preferable.

Broken switch

Connection diagram for a dimmer with a pass-through switch.
During operation, one- and two-key switches wear out, regardless of their design features. The contacts that are most susceptible to wear are those that tend to burn when the keys are used frequently.

If the contacts in the switch are burnt, it is possible that the lamps will quickly burn out or flicker. Dismantling and repairing the old switch, possibly replacing it with a new one, will help solve the problem. You can also install a dimmer - a device that eliminates the possibility of power surges when turned on. With it you can adjust the brightness of the lighting.

Local repair of the device includes a full inspection of the wires for short circuits, oxidation of contacts and separation. Melted or blackened areas on the wiring will help identify the problem.

Bad contacts

Melted wires inside the junction box
The cause of the light bulb burning out may be a wiring fault. First, the connection on the distribution board is checked, and the screw connection is tightened correctly (if necessary).

If every time a lamp burns out, the machine or plugs are knocked out, you need to check the power of the wiring and household devices for compliance. If insufficient power indicators and significant wiring faults are detected, the electrical device must be replaced.

Next, it is important to inspect the connections of the wires located inside the junction boxes. Melted or darkened areas require cleaning and tightening of loose connections. If there is an insulating twist of questionable quality on the wiring section, it must be replaced or installed with a special connector.

Vibration, temperature and mechanical influences

When using electrical appliances, strong vibrations and shocks may occur, which significantly reduce the service life of lighting fixtures.

To extend the service life, it is important to minimize mechanical impacts, including shocks and shaking of the device.

LED lighting devices are not afraid of mechanical and thermal influences, are resistant to voltage surges and have a long service life.

The operation of lighting devices at low temperatures provokes strong thermal changes in the filament, which also negatively affects operation.

How to fix the problem?

If the LED lamp lights up when the light is off, how to fix it? There are different solutions. It all depends on the nature of the problem itself. For example:

1. A cheap, low-quality LED lamp always glows in the dark after it is turned off. To eliminate this problem, it is necessary to replace it with quality products from a trusted manufacturer.
2. If the lighting element is on because an illuminated switch is used, then this problem can be solved in different ways. For example, the easiest way out is to change the switch in the house to a regular one, without backlighting. You can simply cut off the specific wire that powers the backlight. This can be done after opening the switching device. But there is another way out - to preserve this function, it is enough to place a resistor in parallel on a certain section of the electrical circuit.
3. If the LED light is on and the reason is in the wiring, then it will be extremely difficult to solve such a problem. To eliminate it, you need to find the location of the current leak. But this may entail certain difficulties. But when the light turns off, the bulbs will not light up. We talked about what malfunctions in electrical wiring can happen in a separate article. There is another way, simpler. When the lighting element is lit, it is necessary to connect a load (relay, incandescent lamp or resistor) in parallel with it. You just need to take into account the fact that the resistance in the connected load should be lower than in the light emitter. And as a result, the leakage current will flow to this load, but due to the fact that the resistance is insignificant, it will not light up.

Another effective way to eliminate the glow of LED bulbs is to add a capacitor to the circuit. This is explained in detail in the video tutorial:

A variety of methods can solve the problem of the glow of emitters with diodes so that they do not glow at full intensity when the switch is turned off. The main thing is to understand the root cause of the problem. We hope you now understand why the LED lamp glows after turning off and what to do to correct the situation!

It will be useful to read:

• Why is the energy saving lamp blinking?
• DIY LED light bulb repair
• Connection diagram for spotlights

Reasons for constantly burning out light bulbs

Voltage surges can cause an incandescent lamp to burn out.
If different types of lamps fail, the cause must be identified and eliminated. If you lack the skills and the appropriate tools, it is better to contact a qualified electrician.

Why does an incandescent lamp burn out?

Every year incandescent lamps are in less and less demand due to low competitiveness. Compared to analogues, the only advantage of incandescent lamps is their low cost, but most often difficulties arise precisely when using them.

Why do incandescent lamps often burn out?

• purchasing a lamp made from materials of dubious quality;
• power surges;
• incorrect connection diagram.

The durability of an incandescent lamp is also affected by the presence of backlighting at the switch.

The halogen lamp has burned out

A halogen lamp should not be touched with hands during installation - greasy fingerprints lead to overheating of the bulb.
In modern apartments, spotlights with halogen lamps are often used. They have many advantages, the main one being long service life. Among the reasons for frequent burnout are:

• Halogen lighting fixtures are very capricious if installed incorrectly. They quickly fail when using the wrong connection diagram.
• Poor connection of spotlights to power wires.

Low-quality lighting fixtures deserve special attention, for example, Chinese budget chandeliers, sconces, etc. The most common failure is that as a result of operation, the cartridges overheat and lose their elasticity, which leads to constant burning of the lamps.

LED light bulb burnt out

When the base is positioned upward in energy-saving lamps, the outflow of heated air from the base is hampered by the socket and lampshade.
LED lamps are in great demand. With minor voltage fluctuations, the service life of lighting fixtures can reach several years. They can often burn out for the following reasons:

• Burnout of one LED in a daisy chain. Due to an interruption in the electrical circuit, the lamp goes out.
• When LEDs are connected in parallel and in series, one chain burns out. In this case, the lighting device does not go out completely, but only shines weaker.
• Stroboscopic effect: continuous flickering due to an incompletely burned diode.

There are not many reasons for the frequent burnout of LED lamps; you can identify them yourself.