Don’t throw away your burnt-out LED bulb, an experienced electrician shows you how to repair it (Page 2 ) | April 9, 2025

Step 1: Safely open the ampoule

LED bulbs are often covered with a plastic or glass cap. To open it:

Use a flathead screwdriver or pliers to carefully pry off the cover.

Be careful with the fixing clips, they can break if you force too much.

Once opened, you access the circuit board and internal components.

Step 2: Identify the components to be repaired

In most cases, the problem is with the LED driver, a small circuit that supplies power to the LEDs. Here’s how to identify a fault:

• Unsoldered or broken wire: easy to repair with a soldering iron.
•  Swollen capacitor: it must be replaced.
• Burnt resistor: it must be changed to restore the circuit.

If you have a multimeter, measure the voltage to detect the current interruption.

Step 3: Replace defective components

Re-solder if a wire has come loose with a soldering iron and solder.

Replace the defective components (capacitor, resistor, etc.) by checking their characteristics.

These parts are available on specialized sites or can be recovered from other end-of-life devices.

Step 4: Close and test the bulb

Reassemble the bulb, securing all parts correctly.

Check that no wire is touching any metal part to avoid a short circuit.

Test the bulb by plugging it back in.

If it lights up, congratulations, you just extended its life without spending a cent!

A simple and economical repair

With a little patience and a few basic tools, repairing an LED bulb is within anyone’s reach. In addition to saving money, you’ll also reduce electronic waste.

So, ready to give your LED bulbs a second life?

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