In detail: do-it-yourself repair of a 220V LED lamp from a real master for the site my.housecope.com.
With a variety of lighting devices on the counters of the country, LEDs remain out of competition due to their efficiency and durability. However, a high-quality product is not always purchased, because in a store you cannot disassemble the goods for inspection. And in this case, it is not a fact that everyone will determine from what parts it is assembled. Lamps burn out, and it becomes expensive to buy new ones. The solution is to repair LED lamps with your own hands. This work is within the power of even a novice home craftsman, and the details are inexpensive. Today we will figure out how to check the lighting device, in what cases the product is repaired and how to do it.
LED lighting products have become part of our lives
It is known that LEDs cannot work directly from a 220 V network. To do this, they need additional equipment, which, most often, fails. We will talk about him today. Consider the circuit of an LED driver, without which the operation of the lighting device is impossible. Along the way, we will conduct an educational program for those who do not understand anything in electronics.
The 220V LED lamp driver circuit consists of:
- diode bridge;
- resistances;
- resistors.
The diode bridge serves to rectify the current (converting it from alternating to direct current). On the graph, this looks like a cut-off of a half-wave of a sine wave. Resistances limit current, and capacitors store energy by increasing the frequency. Consider the principle of operation on the circuit of a 220 V LED lamp.
Having understood the principle of operation and the driver circuit, the decision on how to fix a 220V LED lamp will no longer seem difficult. If we talk about high-quality lighting devices, then you should not expect trouble from them. They work for the entire prescribed period and do not fade, although there are "diseases" to which they are also susceptible. Let's talk about how to deal with them.
 |
Video (click to play). |
To make it easier to understand the reasons, we summarize all the data in one common table.
Good to know! Repair of LED fixtures is impossible to carry out indefinitely. It is much easier to eliminate negative factors affecting durability and not to purchase cheap products. Savings today will cost you tomorrow. As economist Adam Smith said, "I'm not rich enough to buy cheap things."
Before you repair an LED lamp with your own hands, pay attention to some details that require less labor. Checking the cartridge and the voltage in it is the first thing to do.
Important! Repair of LED lamps requires a multimeter - without it, it will not be possible to ring the driver elements. A soldering station is also required.
A soldering station is required for the repair of LED chandeliers and lighting fixtures. After all, overheating of their elements leads to failure. The heating temperature during soldering should be no higher than 2600, while the soldering iron heats up more. But there is a way out. We use a piece of copper core with a cross section of 4 mm, which is wound around the tip of the soldering iron with a tight spiral. The more you lengthen the sting, the lower its temperature. Convenient if the multimeter has a thermometer function. In this case, it can be adjusted more precisely.
But before you repair LED spotlights, chandeliers or lamps, you need to determine the cause of the failure.
One of the problems that a novice home craftsman faces is how to disassemble an LED light bulb. To do this, you need an awl, solvent and a syringe with a needle. The diffuser of the LED lamp is glued to the body with a sealant that must be removed.Passing carefully along the edge of the diffuser with an awl, inject the solvent with a syringe. After 2 ÷ 3 minutes, lightly twisting, the diffuser is removed.
Checking the disassembled LED bulb. You shouldn't do this - it's dangerous.
Some lighting fixtures are made without gluing with a sealant. In this case, it is enough to turn the diffuser and remove it from the housing.
Having disassembled the lighting fixture, pay attention to the LED elements. Burned is often identified visually: there are burn marks or black dots on it. Then we change the faulty part and check the functionality. We will describe the replacement in detail in the step-by-step instructions.
If the LED elements are in order, go to the driver. To check the performance of its parts, you need to solder them from the printed circuit board. The value of the resistors (resistances) is indicated on the board, and the parameters of the capacitor are indicated on the case. When dialing with a multimeter in the appropriate modes, there should be no deviations. However, often failed capacitors are determined visually - they swell or burst. The solution is to replace it with a suitable one in terms of technical parameters.
The LED can be ringed with a multimeter without unsoldering from the printed circuit board
Replacing capacitors and resistances, unlike LEDs, is often performed with a conventional soldering iron. In this case, you should be careful not to overheat the nearest contacts and elements.
If you have a soldering station or a hair dryer, this job is simple. It is more difficult to work with a soldering iron, but it is also possible.
Good to know! If there are no working LED elements at hand, you can install a jumper instead of the burnt one. Such a lamp will not work for a long time, but it will be possible to win some time. However, such repairs are made only if the number of elements is more than six. Otherwise, the day is the maximum work of the repair product.
Modern lamps run on SMD LED elements that can be soldered out of an LED strip. But it is worth choosing those that are suitable for technical characteristics. If there are none, it is better to change everything.
Related article:
For the correct choice of LED devices, you need to know not only the general LED characteristics... Information about modern models, electrical circuits of working devices will come in handy. In this article, you will find answers to these and other practical questions.
If the driver consists of smaller SMD components, use a copper wire soldering iron on the tip. A visual inspection revealed a burnt element - we solder it and select the one that matches the marking. No visible damage is more difficult. We'll have to solder all the details and ring them separately. Having found the burnt one, we change it to a workable one and mount the elements in place. It is convenient to use tweezers for this.
Useful advice! Do not remove all elements from the PCB at the same time. They are similar in appearance, you can later confuse the location. It is better to solder the elements one at a time and, after checking, mount them in place.
Repairing an LED tube in the form of a fluorescent lamp is no different from working with a simple
When installing lighting in rooms with high humidity (bathroom or kitchen), stabilizing power supplies are used, which lower the voltage to a safe one (12 or 24 volts). The stabilizer can fail for several reasons. The main ones are excessive load (power consumption of the luminaires) or the wrong choice of the degree of protection of the unit. Such devices are repaired in specialized services. At home, this is unrealistic without the availability of equipment and knowledge in the field of radio electronics. In this case, the power supply unit will have to be replaced.
The power supply for the LEDs looks like this
Very important! All work on replacing the stabilizing LED power supply is carried out with the voltage removed. Do not rely on the switch - it may be incorrectly wired.The voltage is disconnected in the distribution board of the apartment. Remember that touching live parts with your hand is life-threatening.
You need to pay attention to the technical characteristics of the device - the power must exceed the parameters of the lamps that are powered from it. Having disconnected the failed unit, we connect a new one according to the diagram. It can be found in the technical documentation of the device. This is not difficult - all wires are color-coded, and the contacts are letter designation.
Plays the role and degree of protection of the device (IP). For a bathroom, the device must be marked at least IP45.
Related article:
In order for the lighting to be stable, and the installed products to serve as long as possible, you should choose the right 12V power supply for LED strip... In this publication, we will consider the types of devices, how to calculate them correctly, how to do it yourself, how to connect, popular models.
If the reason for the flickering of the LED lamp is the failure of the capacitor (it needs to be replaced), then periodic blinking when the light is off is easier to solve. The reason for this "behavior" of the luminaire is the backlight-indicator on the switch key.
The capacitor located in the driver circuit accumulates voltage, and when the limit is reached, it gives out a discharge. The key backlight transmits a small amount of electricity, which does not in any way affect incandescent bulbs or "halogens", but this voltage is enough for the capacitor to start accumulating it. At a certain moment, it gives out a discharge to the LEDs, after which it switches back to accumulation. There are two ways to solve this problem:
- We take out the key from the switch and turn off the backlight. The method is simple, but indications that add value to the switch are no longer useful.
- We disassemble the chandelier and change the phase wire with zero places on each cartridge. The method is more complicated, but it retains the functionality of the switch. In the dark, you can see it well, and this is a plus.
Not only LED lamps, but also CFLs are susceptible to flashing. The device of their PRU (starting-regulating device) works on a similar principle, which allows the capacitor to store energy.
Consider an example of a simple LED lamp repair:
author
Light sources of this category are in great demand on the modern market. They consume a small amount of energy, are durable and resistant to various external influences. However, any technical device can fail during operation. A factory defect, which may appear after the end of the official warranty period, cannot be ruled out. Do-it-yourself qualified repair of LED lamps will help to fix the problem at no extra cost. This article provides technologies for restoring device operability at home with step-by-step instructions and explanations.
It should be noted right away that lamps with such LEDs (filament) cannot be repaired. In them, the flask is filled with an inert gas, and the manufacturers keep the exact composition secret. High-quality reproduction of industrial technology at home is impossible.
They are all made from standard, inexpensive LEDs that can be purchased easily. Typical tools are suitable for checking and performing work operations. The simplest special devices for dismantling and subsequent assembly can be made by hand.
It makes no sense to study physical processes in detail. Suffice it to say that in this case the light source is a specialized semiconductor device. It emits light when applied to a constant voltage of several volts at a relatively low current strength.This means that rectification and limitation of the corresponding electrical parameters will be required. The presence of a p-n junction indicates the possibility of clarifying the operability using a typical test of a conventional diode.
A driver is an electronic circuit that rectifies the voltage, limits the current to its nominal value. The required number of LEDs is installed on a substrate with a heat sink for heat dissipation. The diffuser eliminates irregularities in the luminous flux and excessive brightness of individual emitting elements.
In this simplest 220V LED lamp driver circuitry, capacitor C1 together with resistor R1 reduce the voltage to the desired value. It is determined by the number of LEDs connected in series. On each of them, the voltage drop is about 3 V (the exact value is indicated in the technical data sheet of the device). After the diode bridge, the remaining ripple is smoothed out by the capacitor C2. Resistors R3, R4 limit the inrush current when connected to the power supply. When the lamp turns off, the parallel capacitor is quickly discharged through R2.
In the circuit under consideration, the simplest electronic components are used that rarely fail. According to statistics, the most often damaged electrolytic smoothing capacitor. Problems arise if parts are used "sparingly" without a voltage margin.
Insufficient quality soldered joints are also encountered. They are destroyed after several on / off cycles as a result of thermal expansion / contraction. Repair of LED lamps may be needed more often if they are installed in a room with high humidity. In lamps of this type, there are no contact groups that are damaged by the formation of a film of oxides. Therefore, here, too, the cause of breakdown will be defective soldering.
Sometimes heat dissipation is poorly organized. Under such conditions, LEDs are unable to perform their functions for a long time. It is unacceptable if a plastic fake is installed instead of a metal radiator. It makes sense to repair such products only with a complete replacement of unusable parts of the structure. In case of incompetent assembly, they "save" thermal paste or do not use it at all. In this case, even a high-quality aluminum radiator will not perform its functions with maximum efficiency.
To eliminate doubts, check 220 V directly in the cartridge. To do this, use a multimeter, a phase probe (a screwdriver with a built-in phase indicator), or screw in another workable lamp.
Modern energy efficient LED bulbs are not cheap. But they also last longer than usual, and consume much less electricity. It's a shame when such a device fails. We are accustomed to the fact that lamps are disposable items that have to be thrown away after they burn out. The topic of this article is how you can bring such a lamp back to life with your own hands. Repair of LED lamps is possible! Moreover, this task is within the reach of even a person who is not particularly versed in electrics.
LED lamp saves your electricity bills significantly
LED devices significantly save energy, and at the same time provide full illumination. A 10-watt LED light bulb produces the same powerful light output as a 100-watt incandescent lamp. It turns out that this type of lighting fixture cuts your costs tenfold. Moreover, such devices are distinguished by their durability, unless, of course, they are produced in the Middle Kingdom.
To deal with a possible repair, you need to imagine how the device works. Things are a little more complicated here than in traditional Edison lamps. Each light source, a diode, consists of two semiconductors of different materials. One contains mainly electrons, the second - ions.
When an electric current is passed between semiconductors, energy is released with light radiation
These semiconductors are called LEDs.In the early days of this technology, devices could only emit green, yellow, and red light. For this reason, they were used in indicators. Modern technologies allow you to cover the entire spectrum and use warm and cold shades, which are dominated by blue or yellow-red.
Now directly about the lamp device. Outwardly, it differs little from a traditional light bulb. It has the same threaded base and is suitable for all types of luminaires. But inside the product has a complex structure.
Diagram of a 220 V LED lamp
The transparent shell of the cap hides the contact base, housing, driver and board with semiconductors. The task of the driver is to reduce the current of 220 volts, standard for our networks, to the value required for the operation of semiconductors. This power and control board can be arranged differently depending on the manufacturer's decision. To reduce their own costs, some not very decent manufacturers do not install stabilizers necessary for our networks on the boards. As a result, the light bulb shines very brightly, but not for long. One diode does not shine brightly enough, therefore, in the bulbs, they are grouped into several pieces on the board, combining them into one circuit. If one of the semiconductors is out of order, the entire lamp will not burn.
The transparent lamp cover on quality products is coated from the inside with a phosphor - a substance that enhances the glow. Such bulbs look frosted and opaque from the outside. Such products do not irritate the eyes, their glow is similar to natural sunlight.
For your information! In LED devices, power and light output are not directly related. When choosing a suitable lamp, you need to study the data on the packaging for the level of light radiation. It is measured in Lumens.
The circuit for the power supply of the LED lamp is not particularly complex. There are not many details: a pair of resistors and an anti-parallel connection of diodes. This type of connection allows you to protect against reverse voltage and increase the flicker frequency up to 100 Hz. Some lamps may only have one resistor installed.
220V LED lamp driver circuit
For a 220 volt network, a limiting capacitor is installed in the device on the rectifying bridge.
For your information! In principle, one of the semiconductors can be changed to a simple rectifier, but such a change reduces the flicker frequency to 25, and this negatively affects visual sensations.
Unfortunately, science has not yet invented eternal materials and engines, so sooner or later every device fails. And LED lamps are no exception.
On average, such a device can last 10 years. Special operating conditions and voltage fluctuations can shorten the lifespan of a light bulb. In the first case, it is clear that if the lamp is installed outdoors and operates in heat and frost or in a room with high humidity, it will last much less than usual. And voltage drops can, in principle, be dealt with by installing current rectifiers in a house or apartment. These devices are not cheap, and in practice they are used by few, but in vain, because not only the life of light bulbs is at stake, but also the safety of more expensive household appliances. The state of electrical networks in our country leaves much to be desired and it is unlikely that anything will change in the near future.
For your information! During operation, the power of semiconductors inevitably decreases, they gradually lose their capabilities.
Faults in LED lamps are different. For example, a diode is burned out or a board is out of order. Often, lamps burn out if they are placed outside, for example, in a lantern. Condensation in this case collects inside the lamp body, later you can find out that it burned out, stopped working. Such an LED lamp needs modification and soldering of the diodes.
If necessary, in the event of a diode breakdown, the diode strip can be altered by soldering a jumper instead of the burnt out diode.
LED corn lamps, for example, are great for main lighting. These lamps are of high quality, but expensive. Also, an electronic table lamp can also work in conjunction with LEDs. The subwoofer is often decorated with LEDs for an interesting look.
In order to disassemble electric LED bulbs that have stopped burning:
- You will need a soldering iron and a screwdriver.
- First of all, we disassemble the glass, which can be removed quite easily on some lamps.
- You just need to take the cap with your hand and pull it off.
- The cap is matte light, so it softens the hard light from the LEDs well.
- Inside the bulbs is a matrix with a large number of LEDs.
Next, you need a screwdriver to disassemble the light bulb. The radiator is carefully pushed in with a screwdriver and removed from the case. The LED matrix itself is soldered to the wires, the pads have a plus of gray and a minus of white. This needs to be unsoldered. At the bottom of the case is a switching power supply that converts 220V into a voltage suitable for powering LEDs.
How does a Navigator or Ecola LED lamp work? What does it look like inside, because its internal structure is not visible because of the case? Of course, the incandescent lamp is already in the past, it is transparent, so its device can be seen without disassembling the light bulb.
The main part of the LED lamp includes a board with LEDs (or on a strip of their circuit) and an electronic board (driversm7307):
- The driver rectifies the alternating current and stabilizes it.
- Also, the LED lamp has capacitors on the board.
- The voltage of 220V is reduced to approximately 100 volts, rectified by a diode bridge.
- There is also a smoothing capacitor (rectifier mb6s), which removes ripple.
- The controller is built on the bp2831a microcircuit.
The microcircuit begins to generate a sequence of pulses to the key field-effect transistor, which leads to the appearance of a voltage on the winding. In Chinese lamps, everything is arranged much easier, but such a lamp will not last long either.
They are equipped with a non-isolated step-down constant current LED driver bp9833d.
It is not of decent quality, so you may need to replace the lamp soon. It happens that they fail after a month of use, although LED lamps are designed to last for many years.
It is no secret that LED lighting is penetrating our lives more and more extensively. The Videx LED lamp with an e27 base, 7 W, 220V, with a temperature of 3000 Kelvin and a luminous flux of 560 lumens is not endowed with waterproofing and, as a result, condensation can collect in it and breakdown occur.
LEDs are suitable for everything:
- For basic lighting;
- For a table lamp;
- And even for the street.
To repair an LED bulb, you first need to check the LEDs.After removing the matrix with LEDs, you need to take a tester and check them. Having found a burned out LED, you need to replace it or separate it by soldering a jumper. It remains to collect everything in reverse order, everything in its place.
Before repairing LED luminaires from such companies as Cosmos, Gx53, Jazzway, Maxus or Ft9216 mortise luminaires, you must first disassemble them. To test the operation of the Maxus LED lamp, you need to prepare a long electrical cord, connect it to the lamp and to the network.
Watching the reaction of the lamp, you can understand what exactly does not work in it and how to fix it.
If, when connected to the network, no reaction of the LED lamp is observed, then you need to take a tester and ring the chain from the plug itself to the transformer. If it is found that power is supplied to the luminaire, then you need to look at the output voltage. Since each of the lines is connected in series in the luminaire, a certain current must be kept in the circuit so that the LEDs do not burn out. Also, you need to check all the LEDs in the luminaire. If they work, then you need to check the block.
The electrical circuit of the power supply is visually divided into parts:
- PPS or KKM (power factor corrector);
- Ice driver lis8516 (it is quite difficult to find an analogue of such a driver);
- LEDs.
If the load is of sufficiently high power, at the peak of the capacitor charge, the consumption goes directly from the network. This is very bad for the shape of the sinusoidal voltage. So that the capacitor is charged not only when the voltage in the network is higher than the voltage of the element, but constantly, for this, a power factor corrector was invented. If you use it, then the capacitor is charged constantly in small pulses, and thus the voltage in the network becomes better. To check the operation of the power factor corrector, you need to take a tester, set it to 1000 volts and connect it to a capacitor. Getting started diagnosing and checking the lis8512 led driver, first of all, you need to check the choke with a continuity tester. Also, observing the polarity, you need to check the diode. You can check the resistance across the resistor.
How to check the LED in an LED lamp? There are some nuances in solving this problem. LEDs in lamps are different. In order to check them, sometimes a standard multimeter is not enough, since the voltage on the multimeter probes is only up to 3V.
LED bulb can be tested with single crystal low voltage LED. To do this, you need to turn on the tester for sound continuity, and check the LEDs using the probes. When checking the LED, the polarity must be observed. Put the red probe of the multimeter to the positive terminal of the LED, and the black one to the negative terminal.
Peculiarities:
- If the polarity is incorrect, the LED will not light up.
- If the LED is working, then when checked with a multimeter, it will glow.
- But there are also 2-crystal LEDs, 3-crystal LEDs, and you cannot check them with a simple multimeter.
- When you try to do this, none of the LEDs will light up.
What's the matter, maybe the LEDs are not working properly? No, because these LEDs work from increased voltage, since there are several crystals inside. A lamp with multichip LEDs containing 2 or more crystals in its structure is characterized by a fundamental sequence of their connection, and an operating voltage of more than 3V. To test the LEDs in such a lamp, a higher voltage is needed than on the multimeter probes. Such LEDs are used in powerful floodlights of 10 W and higher. A floodlight with a powerful LED will last for a long time.
If there is no reaction when checking with a multimeter, in such a situation you can take a 12 volt power supply and prepare a connector for it, from which 2 wires will go, and in series 1 1 kΩ resistor. It is needed in order not to damage the LED during testing. A resistor connected in series will limit the maximum current through the LED under test, which will prevent damage when tested from the power supply.
To check, you need:
- Plug the power supply into the network;
- Take improvised probes in the form of wires (for convenience, you can put probes from a multimeter);
- Trying to check the LED.
If everything is done correctly, the LED will light up, which judges its serviceability. When the LED lamp burns out and does not turn on, it is not necessary to throw it away. You can resort to a small repair of an LED lamp at home with minimal costs, both money and time. The most common reasons for the failure of an ice lamp is the burnout of the LED and not soldering the wire to the base. The base must be soldered to the wiring. You can disassemble and eliminate the cause of the breakdown of an Asd lamp with an e27 base as follows. Analysis begins with the removal of the flask. This is a tricky process as it is sealed with a sealant. You can try to open it, or you can corny neatly cut it with a hacksaw for metal.
To determine which LED has burned out, you just need to look. There will be a black dot on the burned out diode. The ideal option, of course, would be to change the burned out diode to exactly the same working one. In order for the LED lamp to be usable and to work for a long time, you can put and solder a jumper around the edges of the burned out diode.
A decade ago, such a rapid growth in the popularity of LED lighting for apartments and private houses was not expected. Today you will not meet a person who would not use these economical and bright lamps. The only problem remains in the cost of lighting fixtures - such fixtures cannot be called cheap. What if the lamp is out of order? Buy a new one? Not necessary. You can try to repair the lighting fixture. It is precisely the "device", because it is a complex technical device, in contrast to the "Ilyich's lamp". Today we will figure out how to repair LED lamps with our own hands and how difficult it is.
LEDs are the most economical type of lighting - it's hard to argue with that. Such elements are used both in everyday life and in production. Street lighting is gradually moving towards similar energy savings. Light diodes, in addition to efficiency, have another indisputable advantage over other types of lighting devices - they have no competitors in terms of durability. But they cannot work directly from a network with an alternating current of 220 V. This requires a special device called a driver.
The circuit of a 220 V LED lamp includes a device that is compact enough and fits in the base. There is nothing more complicated in the lighting device, however, the driver, performing work to stabilize the voltage, often fails. Burnt-out LEDs are not difficult to replace, it is enough to own a soldering iron at the "just learned" level. But today we will figure out how to repair drivers.
The general principle of operation of LED lamps is as follows. The alternating current of the network enters an electronic device - a driver that stabilizes voltage drops. Direct current is directed to LEDs, which emit the light we see.
Related article:
How to choose LED bulbs for your home. In this material, we will consider the device of light semiconductors, their varieties, average prices, manufacturers, selection criteria, room illumination standards, expert advice, and find out why the lamps are blinking.
If we simplify such a system, we get a 220 V LED lamp driver circuit, which includes two damping resistors that stabilize the voltage. LEDs are connected in different directions, which protects against reverse voltage. The flicker frequency doubles - from 50 to 100 Hz.
Power in such a circuit is fed through a limiting capacitor to a rectifier (diode bridge), and only then to the elements. We simplify the system. We change one light diode to a rectifier. The lamp works, but the frequency of the current, instead of increasing, decreases by 2 times and becomes equal to 25 Hz, which leads to a sensitive flickering of the lighting fixture. It is harmful to vision, impairs health, increases fatigue and causes headaches.
However, there are LED lamps at a completely different cost. For example, GENILED SDL-KS 80W 07077, 80 W power and 4700K color temperature. Its cost can be surprising. It is equal to 10,200 rubles.
Often the reason for the failure of an LED lamp is improper operation or sudden voltage drops in the network. Let's take a look at the most common ones:
- A sharp power surge. LEDs in such a situation will remain intact, but the driver may fail;
- Wrong choice of luminaire. If normal ventilation is not provided, the driver overheats, which negatively affects its operation;
- Factory defect or falsification of products. If you come across a too cheap lamp of this type on the counter, you should think about how the low price was achieved;
- Vibration and shock. They are not terrible for LEDs, but for the driver they can be fatal.
Most often, the capacitor fails (the lamp will stop burning), and the current-limiting resistor (sensitive flickering, up to blinking). In order not to buy new equipment, you need to understand how to repair an LED lamp with your own hands.
The driver, which causes failure in 80% of cases, is not necessarily built into the light bulb. The light source can only consist of LEDs, and the stabilizing device will be built into the lamp or chandelier. However, the remaining 20% should not be discounted. It is necessary to check all the details before proceeding with the repair of the ice lamps.
In the case of a separate driver, everything is simpler. We change the lamp, and if it glows, then the problem is in it, if not, the stabilizer is to blame. The situation with the built-in driver is more complicated.
Now the promised secret. To repair LED lamps with an ordinary soldering iron, you need a piece of copper single-core wire, with a cross section of 4 mm², 10 ÷ 15 cm long. "Scapula". The temperature will also depend on the length. Convenient if the multimeter has a thermometer function. For LED SMD components, which are used in LED lamps, a temperature of 240 ÷ 260 ° C is required.
Some devices are not easy to disassemble. When you try to rotate the top, nothing comes out? Then a solvent comes in handy. We put it into a syringe and carefully pass through the needle along the seam. We leave for 5 minutes, after which we repeat the operation. Usually 2 ÷ 3 procedures are enough. Gently swing the upper part by turning left and right. After removing the cover, we clean off the old sealant and degrease the surfaces. If you plan to use the lamp in a dry environment, you do not need to apply new sealant.
It is not difficult to disassemble the LED lamp, the main thing is that the benefits are
Having figured out how to fix a 220V LED lamp, it makes sense to deal with more complex devices, such as spotlights or chandeliers. Although there is not much difference in the work. Experts say that repairing LED floodlights is even easier, because the drivers and their parts are larger. We subscribe to this opinion.It only seems that such devices are more high-tech and more complex. In fact, having diagrams at hand (they are always contained in the technical documentation of a lighting device), for example, repairing an LED chandelier is quite simple. The same continuity of LEDs, driver details. After - the selection of suitable ones to replace the burned ones.
Important information! If the LED burns out and there is no suitable replacement at hand, you can slightly extend the life of the lighting device. The contacts of the burned-out element are bridged among themselves, and the lamp lights up again. But you should be prepared for the fact that after a short time it will go out again. The LED next to the bridged one will light up. If you continue to install the jumpers, the time between repairs will decrease exponentially.
Several LED lamps will transform the interior beyond recognition, but for the better.
If all the LED lighting in the bathroom goes out at the same time, you should start small. Remove the switch cover and check the voltage supply. If everything is in order, then the problem is in the power supply.
A bathroom is a room with high humidity, in which the use of 220 volt lighting fixtures is unacceptable. For this reason, a 12 volt power supply is installed. The reason that all the lighting stopped burning at once may be the failure of this device or a breakdown of the wiring, which is hardly realistic. You will have to buy such a block. Having dismantled the old block, we look at the technical parameters, purchase a stabilizer with similar characteristics and install it in place.
Important! All work on dismantling and installation of the stabilizing power supply is carried out only with the voltage removed. It is better to turn off the introductory machine. This is the only way to protect yourself from electric shock.
This is a common problem. It happens that people refuse to replace ordinary lighting in an apartment with LED due to the fact that when the light is off, the LEDs blink, in the manner of a stroboscope. There is only one reason for this - the backlight of the switch.
If the indicator is on, it is passing a certain amount of electricity through it, which does not have any effect on conventional lamps. But in the driver of LED lighting devices there is a capacitor that has the ability to store electricity and then give it out. He then collects this energy "bit by bit", and upon reaching a certain volume gives it in the form of a pulse to the LEDs.
This indicator causes the LEDs to blink.
The problem can be solved very simply - turn off the backlight on the switch. However, blinking due to the indication on the key is a consequence. And what's the reason? There are also no difficulties here. The reason is the incorrect connection of the chandelier sockets. It is known that when incandescent lamps are installed, zero goes to the thread of the base, and the phase goes to the center. The LEDs start blinking if this order is violated and the wiring is done incorrectly.
Filament lamps are new to the market. They cannot be repaired.
LED lighting continues to grow in popularity. But even with a decrease in prices for lighting devices based on them, they remain expensive. And why overpay if you can repair a light bulb or lamp with your own hands. You don't even need to purchase parts for this. You just don’t need to throw out those that are out of order. Then from two or three it will be possible to collect one worker.
|
Video (click to play). |
We hope the information presented in our article will help the reader to save money on the purchase of lighting equipment. If you have any questions, you can ask them in the discussion below. And finally, we suggest watching a useful video on the topic:
