How to Repair Led Light Driver

If you have a led light that is not working, you should first check the light driver. The light driver is what converts the AC from the wall to the DC that powers the LEDs. If your light driver is damaged, you can try to repair it.

How to Repair Led Light Driver

This blog post will show you how to repair led light driver. Keep in mind that this procedure should only be used as a last resort, as there are risks involved in repairing electronic components. Proceed at your own risk! So keep reading this blog post to learn more!

Summary: Led light drivers are an important part of lighting systems. They can be damaged if exposed to extreme temperatures, moisture or power spikes. To repair a broken led light driver, start by finding the source of the problem and then replace any damaged parts such as diodes, capacitors or resistors.

If the driver is still not functioning correctly, you may need to re-solder some components. Some drivers also require additional debugging software to help identify problems. Once all repairs have been completed, the driver should be tested to ensure that it is working properly before being put back into use.

What is an LED Driver

An LED driver is a device that regulates voltage and provides electrical current to an LED, acting as a “middleman” between the LED and a power source. By keeping both components within a safe operating range, the LED driver ensures that your LEDs are properly powered without damaging them.

If you use a regular AC current to power LED lights, it will damage the lights. AC current also makes it difficult to use multiple colors, so you would have to use different drivers for each color. This would be expensive and inconvenient.

How Does an Led Driver Work

An led driver (or led power supply) is an electronic device for driving semiconductor light sources. The most common light sources are LEDs and CCFLs, so the devices are often described as LED drivers or CCFL drivers. The driver converts line voltage (typically between 90 and 264 VAC) into the DC required to drive the light source.

As we all know, led lights are semiconductor devices, and they work according to electrical currents which run through them. The drivers also regulate the LED current to ensure that it is within a specified range. To make the electrons move through the semiconductor, we need to apply a certain voltage across it called forward bias voltage.

Now when we apply this bias voltage, there is a current flowing through the LED, and that means if this current increases, it will burn out the led, and if it decreases, then the brightness and efficiency of the LED will decrease. So there is a need for a device that can regulate the current going through it, and this is where an led driver comes.

8 Reasons That Causes Led Driver Damage

1. Over current:

LED drivers are designed to operate their circuits within a specific current range. If the current is too high or too low, the driver can be damaged. Sometimes it is the LEDs that are faulty and drawing too much current. In other cases, a wire link or connection might have been hot-wired by accident so connecting a pair of wires directly across the supply instead of using a through-connection with fuse.

2. Reverse Voltage:

When LED drivers are designed to work with DC voltage, it is essential to avoid reversing the polarity of the supply when connected. If the supply polarity is reversed, some LED drivers might be damaged.

Work With Dc Voltage

3. Heat:

When LEDs are pushed beyond their maximum current and forward voltage levels, they can generate a lot of heat. If this heat is not able to dissipate from the board and components over a long enough period, then the components on the LED driver can be damaged.

4. Short Circuit:

When LEDs are wired in parallel, it is essential to ensure that all the positive legs of one LED are connected, and each LED’s negative legs are connected. If this is not done, the LED may have a positive and negative leg. In this case, it will probably cause each LED to become forward biased, and current will flow from one diode to another via the connection points of two diodes in series short-circuiting both LEDs.

5. Reverse Polarity:

Reversing the polarity can cause more than just damage to the LED drivers. Sometimes, LEDs can be extremely bright when reverse biased, but they are not designed for this type of operation. If LEDs are forward biased with too much current applied, they may be damaged or destroyed.

6. Voltage Sag:

LED drivers often have a protection circuit that causes them to shut off if the supply voltage drops below a certain level. If this happens, then it is possible that the LEDs will not light and thus fail to illuminate.

7. Power Outage:

LED drivers can become damaged when there is a power outage. This is because some of the most advanced LED driver circuits have an internal memory that stores the most recent settings. Still, it only works if the LEDs are not being continuously energized under normal lighting conditions, which means that if they are constantly powered on, then this data cannot be stored.

8. Over temperature:

LED drivers are designed to operate within a certain temperature range. If the ambient temperature exceeds these levels, damage can occur. The heat generated by the driver’s circuit will be dissipated through conduction and convection. Still, if there is insufficient airflow or the design of the driver board does not allow proper dissipation, then a driver can be damaged.

Operate Within a Certain Temperature Range

Step by Step Guide: How to Repair Led Light Driver

Step 1: Gather Necessary Tools and Materials

Before starting the repair process, gather the necessary tools and materials, including:

  • Multimeter
  • Soldering iron and solder
  • Desoldering pump or solder wick
  • Wire stripper and cutter
  • Heat shrink tubing or electrical tape
  • Replacement components (if needed)
  • Small screwdriver set (flathead and Phillips)
  • Pliers or needle-nose pliers
  • Clean cloth or paper towel
  • Small container for holding screws and other small parts

Step 2: Turn Off Power to the LED Light

Ensure that the LED light is powered off and disconnected from any power source or accessories to prevent any electrical issues or damage during the repair process.

Step 3: Remove the LED Driver

Access the LED driver by removing the LED light’s housing or cover, following the manufacturer’s instructions or guidelines. Once the driver is exposed, disconnect it from the LED light by removing any screws or clips and disconnecting any wires.

Step 4: Inspect the LED Driver

Examine the LED driver for any signs of damage, wear, or malfunction. Look for visible damage, such as burnt components, broken solder joints, or swollen capacitors.

Step 5: Test the Components

Using a multimeter, test the components of the LED driver to determine if any are malfunctioning. Check the resistors, capacitors, diodes, and integrated circuits by following the manufacturer’s specifications and guidelines. Identify any components that need to be repaired or replaced.

Step 6: Desolder Damaged Components

If any components need to be replaced, use a soldering iron and desoldering pump or solder wick to remove the solder securing the damaged component. Be cautious not to damage the circuit board or other components during this process.

Step 7: Replace Damaged Components

Once the damaged component has been removed, replace it with a new, compatible component. To do this, follow these steps:

  • Position the new component on the circuit board, ensuring that it is properly aligned and oriented.
  • Use a soldering iron to heat the component’s leads and apply solder, securing it to the circuit board.
  • Trim any excess leads with wire cutters, if necessary.

Step 8: Repair Broken Solder Joints

Inspect the LED driver for any broken or cracked solder joints. If you find any, use a soldering iron to reheat the joint and apply additional solder, if necessary, to create a secure connection.

Step 9: Reconnect the LED Driver

With the necessary repairs completed, reconnect the LED driver to the LED light. Secure any screws or clips and reconnect any wires, ensuring that all connections are tight and secure.

Step 10: Test the Repaired LED Light

Power on the LED light to test the functionality of the repaired LED driver. Ensure that the light functions correctly and consistently. If you encounter any issues, disconnect the power and reinspect the LED driver to address the problem before retesting.

Step 11: Reassemble the LED Light

Once the LED driver has been successfully repaired, reassemble the LED light by replacing the housing or cover, following the manufacturer’s instructions or guidelines.

Step 12: Maintain Your LED Lights

To prolong the life of your LED lights and prevent future issues, regularly inspect and maintain them. Keep them clean and free of debris, and address any signs of wear or damage promptly.

Step 13: Troubleshoot Any Ongoing Issues

If your LED light continues to have problems after completing the repair process, it may be necessary to troubleshoot further. Consult the manufacturer’s instructions or contact their customer support for guidance. In some cases, it may be more cost-effective to replace the entire LED light or driver rather than attempting additional repairs.

Step 14: Consider Upgrading Your LED Lighting System

If you find that your LED lighting system requires frequent repairs or is no longer providing the desired level of performance, consider upgrading to higher-quality or more energy-efficient lights. Research different options and read customer reviews to find LED lights that best meet your needs and preferences.

Step 15: Share Your Repair Experience

Once you’ve successfully repaired the LED light driver, consider sharing your experience with others. Posting a tutorial or writing about the process can help others facing similar issues, and you may even learn new tips or tricks from the community’s feedback.

Step 16: Develop Your Repair Skills

By repairing the LED light driver, you’ve gained valuable experience and developed problem-solving skills that can be applied to other projects or situations. Continue to hone your repair skills by tackling other challenges and learning from each experience.

Step 17: Prevent Future Issues

Take steps to prevent future issues with your LED lighting system by handling it with care, avoiding exposure to extreme temperatures or moisture, and storing it properly when not in use. Regular maintenance and prompt attention to any signs of wear or damage will also help ensure the system’s continued performance.

Step 18: Create a Maintenance Schedule

Establish a regular maintenance schedule for your LED lighting system to ensure its optimal performance and longevity. This may include periodic inspections, cleaning, and testing of the LED driver and other components.

Step 19: Seek Professional Assistance When Necessary

If you encounter any difficulties or uncertainties during the LED light driver repair process, seeking guidance from a professional electrician or technician can help ensure a successful outcome. They can provide expert advice, assess the situation, and perform any necessary repairs or replacements.

Step 20: Stay Informed about LED Technology

As LED technology continues to advance, staying informed about new products, innovations, and best practices can help you get the most out of your LED lighting system. Subscribe to industry newsletters, attend workshops or webinars, and join online forums to stay up-to-date on the latest LED news and trends.

By following these steps, you can successfully repair an LED light driver and restore the functionality and performance of your LED lighting system. Regular maintenance, preventative measures, and developing your repair skills will help prolong the life of your LED lights and ensure their continued performance. If you encounter any difficulties or uncertainties during the repair process, seeking guidance from the manufacturer or experienced professionals can help ensure a successful outcome.

Problems With Led Drivers and Voltage Conversion

When it comes to how many watts are used by the led light driver, this will depend on what type of LEDs are being driven. The more complex/brighter the color of the LED, the higher voltage is needed to power them. For example, clear LEDs can be powered off the input of between 1-2 volts DC, while blue LEDs need an input of around 5 volts DC.

The larger the LED driver, the more wattage it can process and convert into light energy. The more wattage the driver can process determines your grow lights’ size. For example, if you want 300 watts of power altogether, but the LED drivers only allow for 100 watts input max before burning out, you will need to purchase three 100 watt drivers instead of just one 300 watts LED light driver.

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Frequently Asked Questions

Can You Fix An Led Driver?

If your Led driver is not working, there are a few things that you can do to try and fix it. The first step is to check if the power cord is plugged in properly. If it isn’t, then you may need to replace the power cord.

Next, make sure that all of the light bulbs are correctly installed and connected by checking for continuity between each bulb and plugging in an Alternator tester if needed. Finally, test whether the led driver’s circuit board is operational by turning on one single lightbulb while also testing each individual wire connection on the circuit board with a meter or multimeter.

What Causes Led Drivers To Fail?

There are many factors that can contribute to a LED driver failing, including improper installation, problems with the USB cable, and incorrect voltage. Additionally, if your LED’s are exposed to extreme temperatures or sunlight for an extended period of time, their lifespan may be shortened.

By knowing the signs and symptoms of a LED driver failure, you can address the issue before it becomes more serious. For example, if you notice flickering or poor brightness in your lighted areas (particularly on high-traffic days), then it is likely that your driver has failed.

If this problem persists even after replacing the driver, then it might be best to call in a professional technician to inspect and repair your system as soon as possible.

Do All Led Lights Need A Driver?

No, not all LED lights need a driver. In fact, many LED lights operate with a power supply that is built into the light itself. These power supplies are often called “included LEDs.” While included LEDs do offer some benefits – such as being smaller and more energy-efficient – they do have some downsides.

One downside is that included LEDs often have shorter lifespans than regular LED lights, and they may not be as bright or as versatile as standalone lights.

Are Led Drivers Ac Or Dc?

LED drivers are considered to be ac, meaning that they use alternating current. This type of driver is more efficient and produces less heat than a dc driver. Additionally, LEDs typically last longer when used with an ac drive because the electric field does not have as much power in it and may eventually damage the LED light source.


If you’re experiencing problems with your LED light driver, you can try a few things before taking it in for repairs. First, make sure that the power supply is adequate and that the voltage matches the requirements specified by the light driver. If those checks pass, check the connections between the power supply and the driver.

Power Supply Is Adequate

If any of those connections are loose or corroded, tighten them or replace them. We hope you enjoyed reading our blog post on how to repair led light driver, and we’ll be back soon with more helpful advice. Please contact us if you have any questions or need assistance with the led lights driver!

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