DIY 30w LED spotlight repair

Repair of LED floodlights is one of the main services provided by our company.

We also carry out warranty and post-warranty repairs of LED floodlights of our own production, as well as repair of third-party floodlights, taking into account the recommendations set out below.

The repair period depends on the workload of our workshop, but, as a rule, does not exceed one or two days. Often it is possible to repair a searchlight even on the same day.

Our answer is Yes, but only if during the repair, spare parts for LED floodlights that are consistent with each other in terms of volt-ampere characteristics are used.

Choosing a mistake can be expensive!

There are two main parts in an LED floodlight - a matrix (light source) and a driver (power supply) for this matrix. Both of these parts are almost always non-separable, and in the event of a breakdown, one or both of them must be replaced. Matrices, like drivers, in an LED floodlight can be installed several, usually from one to four.

Owners of cheap and low-quality LED floodlights are often faced with their failure, following a very short time after purchase and installation.

This is expressed in the fact that the spotlight blinks, burns dimly or does not burn at all. Any of the symptoms indicates the need for diagnosis and repair.

You can always buy spare parts for LED floodlights necessary for repairs from us:

Many people mistakenly believe that spare parts for floodlights are universal and, for example, any matrix with a nominal power of twenty watts will fit a twenty-watt driver.

This is by no means the case! In order to revive your bright friend, you need to select those spare parts for the LED floodlight that coincide in current and operating voltage range.

An error in the choice can lead to the fact that the repair will end with a quick burnout of the matrix, or the failure of the driver (less often), or the matrix simply will not light up.

TAUREI LED matrices are fully compatible with the corresponding power supplies (drivers), and their joint work will be reliable and long-term.

Therefore, when choosing spare parts for repairing an LED floodlight, the most correct solution would be to replace the matrix and driver in pairs.

If you own a soldering iron and at least the most basic knowledge in radio electronics, then repair (replacement of the driver and / or matrix) of the LED floodlight will not be a problem for you.

But it must be borne in mind that on the basis of only an external examination of a faulty floodlight, it is impossible to make an unambiguous conclusion about which part is out of order... For example, the flickering of the matrix of an LED floodlight can be caused both by a malfunction of the matrix itself and the driver. To accurately determine the source of the problem, diagnostics are needed - at least, the matrix and the driver of the problematic spotlight should be connected in pairs to the same, but known good driver / matrix.

The main points to pay attention to during the repair process:

1. correspondence of the current-voltage characteristics of the driver and the matrix;
2. the matrix can be installed only for thermal grease;
3. tightness of final assembly.

Improper repairs can lead to additional costs. Here is an example - according to the client, the floodlight was repaired four months ago by the “craftsmen” from the radio market, who replaced the LED matrix.However, during the assembly, the tightness was broken, and the photographs show the consequences of only four months of outdoor operation.

Photos of the insides of the LED floodlight after four months of operation after a poorly made repair - the tightness was broken

This floodlight was restored, but in addition to thorough cleaning, both the driver and the matrix had to be changed.

The cost of repairs depends on what exactly needs to be replaced in the LED spotlight: a matrix, a driver, or all at once, and actually consists of the cost of spare parts and a small fee for diagnostics.

Diagnosis of a spotlight malfunction costs from 200 rubles (for LED spotlights less than 100 watts of power) to 400 rubles (for spotlights 100 or more watts). The cost of diagnostics does not depend on the number of matrices and power supplies in the projector.

The cost of repair work (disassembly, cleaning, replacement of parts, soldering, assembly) - completely freeif our spare parts are used in the repair process: matrices and / or power supplies.

Thus, for the repair of an LED floodlight, you only have to pay the price of the used spare part (s) and 200 rubles for diagnostics (400 rubles for powerful floodlights). The prices of matrices and power supplies are indicated on the website and are current.

To estimate the cost of repairs, contact us:

• call the multichannel phone + 7495 789 8270;
• write a letter describing the problem by email;
• send a message from the site.

You asked - we answered

• There are 3 LED lamps available, each has its own power source - 3 drivers with characteristics: output - DC 24 - 45V / 300mA + -5% / 14W. Can I connect 3 lamps in parallel and connect them to a power supply: DC 28-38 volts, 1500mA, 50W?Most likely, it will work, but with an obvious overcurrent on the matrices. The matrices will eventually fail. How quickly is difficult to say, perhaps very quickly.
  In addition, such a connection will not have a good effect on the driver either.
• LED floodlight ASD brand SDO-2-10 began to blink after a year of operation. What is the reason, what would you advise to change?
  LED floodlight ASD brand SDO-2-20 does not light, although it worked for about 2 years at night. I measured a voltage of about 50 volts on the matrix. What, the matrix burned out? In general, how to check if it is working properly?Although we are not familiar with the indicated brands of floodlights, judging by the description, these are standard single-matrix floodlights of 10 and 20 watts.
  Sometimes it is easy to diagnose a malfunction of an LED floodlight, sometimes it is more difficult.
  Let's start with the second case.
• Is it possible to replace the DC28-38V 600 mA power supply with a DC22-40V 900mA in a 20 watt floodlight? The driver fits into the case.Technically, such a replacement of the power supply is possible. A spotlight with a more powerful power supply will work. But the life of the matrix and, probably, the power supply will suffer.
• Is it permissible to install a 100W driver and a 100W LED array in a 50W LED floodlight housing? Is there enough cooling? Thank you in advanceUnfortunately, the design of some of the 50-watt floodlights sold in Russia does not allow even the standard matrix to be cooled properly. We do not claim that this is your case, but nevertheless it is a fact.
  In addition, the driver, most likely, will not fit - 100 watts is significantly more.
• Hello! What should I do? In the presence of 18 floodlights of 20 watts. They need to be installed in a pit, but for safety reasons, 220 volts cannot be there - only 12, 24 or 36.
  It is supposed to be divided into zones of 6 luminaires.
  What's the best way to install three 120W drivers per zone? Or one powerful driver for everything at once?
  The drivers were standing: Vout: DC20-43V, Lout: 600mA MODEL: 20600, with my multimeter I intended 34.8v at the driver output when the lamp was connected. Thanks in advance!Judging by the characteristics, the lighting is organized by conventional single-matrix LED floodlights with a power of 20 watts.
  There are two ways to lower the voltage to 12, 24 or 36 volts.
• Is it permissible to connect two 50 W power supplies in parallel to a 100 W LED matrix in a spotlight? Thank you in advance.No, such a connection of power supplies is absolutely not permissible.
  Power supplies stabilize the current in the circuit by varying the output voltage. When connected in pairs, each driver will become an active load for the other, and the behavior of the entire system will be unpredictable.
• It seems that the PSFL100 driver is suitable for us to replace the Chinese one. I would like to clarify what is stabilized - current or voltage? We need a driver with a stable current of 3000mA +/- 5%.
  Chinese driver model LZ 220 V 100 W with DC characteristics: 30 - 36 V, 3000 mA +/- 5%.These are LED drivers, respectively, the current is stabilized, of course.
  The PSFL100 fits your needs and should fit. A slightly wider range of output voltages of our driver (by 2 volts in each side) should not create problems; rather, on the contrary, it will add stability.

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Frequent problems with lighting at home unwittingly require an independent troubleshooting. Agree, it is rather inconvenient to regularly invite a specialist to bring an LED or any other type of device into working form. To avoid such discomfort, we suggest that you learn the basics on how to repair LED floodlights yourself.

LED floodlight is one of the demanded and popular devices used to illuminate the local area. This tool is quite convenient to use, but sooner or later it will require repair. Therefore, it is so important to know the skills of correctly identifying a malfunction, eliminating dysfunction and being able to return the device to its normal state.

Attention! Basic LED floodlights do not provide for replacement of light sources with another with a different power.

Often, the breakdown of an LED flashlight occurs due to overheating of the matrix. Overheating will blow the fuses. Thus, the following are considered as indirect reasons leading to the dysfunction of the device:

• short circuit;
• connection of overcurrents;
• overvoltage;
• connecting to the wrong network;
• non-observance of the device connection diagram.

Let us consider how a matrix defect is formed in more detail. The Matrix is ​​a device powered by crystals. As a rule, there are dozens of them, and in case of failure of three or five crystals, the device continues to work in the same mode. Complete combustion of the matrix requires intervention. In such situations, a complete die replacement is ideal.

Important! In the process of repair work, the conductors of the searchlight should be additionally insulated.

Also, in almost all cases, the LED sources fail to work solely due to a malfunction of the drivers that feed the crystal surface of the floodlight. If your device becomes unusable during the warranty period, at the point of sale, you should be assisted and have the device replaced free of charge. Otherwise, you will have to resort to repairs yourself or pay for specialists.

To access the interior of the spotlight, you need to unscrew the back cover

Before proceeding with the repair work, you should acquire the necessary tools, as well as clarify the cause of the malfunction of the LED floodlights and carry out their elimination properly.

Chinese-made LED devices with a total power of 10 watts are considered frequent contenders for repairs, therefore, consider troubleshooting using the example of such a device. Let's get acquainted with the algorithm of actions:

1. We detach the cover of the device case to get to the internal mechanism.
2. Remove the glass cover and light diffuser.
3. We unsolder the LED source from the matrix.
4. We solder it to the new workable crystal panel.
5. We fasten each bolt, check the spotlight with a multimeter.If the dial tone shows the working position, then we fix the flashlight in its place and enjoy its further work.

It's important to know! Polarity must be observed before installing a new matrix.

After disassembling the spotlight, you can start repairing

We draw the attention of beginners, after eliminating the malfunction, you should proceed in the reverse order. In addition, there is an opportunity to find out malfunctions on the following grounds:

• flickering of a light bulb;
• dull burning;
• changing the shades of the LED;
• deformation of wires and insulation failure.

The device works thanks to the joint work of several installed systems: optics, power supplies, drivers and heat sinks. Inside the case are LEDs and small electronic components. The power supply drives the voltage to the LED element, which converts the current into light rays, due to which the floodlight shines.

Attention! Do not open the sealed housing of the LED floodlight unnecessarily.

After you have repaired the LED floodlight and made sure it works, you can slightly improve the device. In some devices that normally operate under 220 volt power conditions, a rectifier and stabilizer are usually not installed. Carrying out repairs yourself, such devices are very easy to install. To do this, you should connect in series pairs of LED sources, which are turned on in opposite directions, and a ballast capacitor should be applied to them.

Watch a small video tutorial on how to repair LED spotlights with your own hands:

Despite the fact that LED technology is very reliable, it cannot be perfect and sometimes fails. Especially if you decided to save a lot and bought one of the cheapest floodlights. So what to do if your LED spotlight flickers and blinks, or even worse - stopped working altogether, and your warranty for the purchased product ended, or did not start at all. It is possible that you purchased a non-certified product in a reliable store with a good reputation, and at your own risk and risk ordered the most budgetary LED floodlight directly from China, through Aliexpress, for example? And here in front of you lies and blinks or does not shine at all, a far from cheap lighting device, and you do not know what to do? Don't give up. In this article we will tell you how to repair the device yourself.

In order to repair the LED processor with your own hands, you must confidently hold a multimeter (in the picture below) and a soldering iron in your hands. This is necessary in order to be able to determine the cause of the breakdown, and, in fact, eventually eliminate it, bringing the device back to life.

So, first of all, you need to determine the cause of the malfunction of your device. If the spotlight turns on, but when it is on does not burn evenly, but flickers and blinks, the current-limiting capacitor C1 is probably out of order. Many Chinese manufacturers sin by using a current-limiting capacitor that is not suitable for the driver in terms of parameters, trying to achieve maximum brightness from a not very powerful floodlight. A current limiting capacitor of 400 volts rated operating voltage is fine.

Another common cause may be the failure of the power supply. There are two ways out of the situation - contact an electronics store, where they will help you choose a suitable power supply unit (its characteristics are indicated on it, therefore, it is advisable to disassemble the spotlight and take the unit with you), or select a power supply unit (it can come from a scanner or printer).

The second option is possible, of course, only if you suddenly have unnecessary and non-working office equipment lying around, which can serve as a power supply donor.Check the power supplies so that they are similar in parameters. An exact match is not required, but the parameters should not diverge much. As mentioned earlier, if you have the skills to use tools and an understanding of electronics, you can easily change the power supply yourself.

If a low-power floodlight needs repair, it is likely that it may not have its own power supply, and the LED driver performs the function of changing the currents in it. Since the LED cannot be powered directly from the mains, requiring an alternating current that differs from what the mains can offer it, a driver is used in the floodlight device that takes into account the spread of the LED characteristics depending on the operating temperature and time, correcting the current supplied to the LED at the output ... It is this driver that can fail.

To replace it, it will be necessary to disassemble the LED floodlight and find out the driver marking in order to buy or order a replacement. If you are a confident user of a power tool, you can find the failed driver element and unsolder it and replace it. If you are repairing a DIY LED floodlight, most likely it will be easy enough for you to find the problem in the driver or find a similar driver and replace it. It will definitely be cheaper than buying or assembling a new floodlight from scratch.

Another option for the failure of the design of your LED floodlight, in addition to a malfunction of the driver, power supply or other small elements involved in the current conversion process, may be the burnout of the LED matrix itself. In case of failure of the LED itself, it is necessary to find and purchase a diode of similar characteristics. After disassembling the spotlight, you will need to carefully uninstall the burned-out matrix by unscrewing the four fastening screws and unsoldering the conductive elements. Then you will need to evenly and carefully apply a layer of thermal paste to the new diode, solder the current-carrying elements and carefully screw the matrix. It should be noted that the shape of the matrix must remain intact, that is, it is advisable to use the same screws that were used initially. They should not have tapered heads, as when using them, if you tighten them with a little more force, they can damage the die, and all your work will be for nothing.

To repair an LED spotlight yourself, you must at least have a good command of working with a soldering iron, testers and a multimeter, as well as understand the circuits or be able to read them in order to find the cause of the malfunction, evaporate the faulty element and replace it.

If a driver or a power supply unit is out of order in your spotlight, you can pick up a replacement and bring the lighting fixture back to life. Just as with the driver, replacement can be done with an LED matrix - just buy an analogue with similar characteristics. If for some reason after your manipulations the device did not work, it probably makes sense to purchase a new one. But if you are confident in your abilities, you can always assemble an LED floodlight with your own hands - it will be easier to repair it in the future, or replace some elements, constantly extending the life of the device.