What is an LED?
An LED is an electronic component also called a “light emitting diode”. It emits light when an electric current passes through it. Unlike its ancestor the incandescent bulb, it does not emit heat. It also has better resistance to shocks, numerous manipulations (switching on and off) and vibrations, which further extends its lifespan. However, it is obviously possible that your LEDs break down, in particular because of some of its components which can be damaged over time . You could of course replace them, but repairing LEDs is a more economical and ecological option.
Fix blinking LEDs
If your LED bulb flickers, it is certainly due to a variation in the electrical voltage. Indeed, some LED bulbs are equipped with a transformer whose role is to ensure the conversion of the input current (220 V) into direct current (12 V). The latter can sometimes cause intensity fluctuations. In other cases, using an incompatible or low quality dimmer can also cause your LED bulbs to flicker. In this case, it is better to change your dimmer or replace the bulb. Indeed, it is difficult to change its transformer and it is not an economical solution.
Repair flickering LEDs.
A flickering LED bulb is a common problem. The best solution in this case is to opt for double-pole switches. They make it possible to simultaneously cut the phase (the conductor which will supply the device with energy) and the neutral (the conductor which will allow the current to return to the EDF circuit). This option guarantees optimal safety and power-down of the LED lamp by eliminating the electromagnetic field generated by the electrical cables.
Repairing an LED bulb that does not light up.
If your new LED bulb does not light up, make sure it is firmly screwed into its socket. This may seem obvious, but it is a common concern. If you observe a damaged metal tip, there is no other solution than to change your LED bulb.
- Read Also LED Light Flickering
Tips for Fix LED
If your LED bulb seems at the end of its life when it shouldn’t be, there is a way to restore it! Indeed, several LEDs are present in your bulb, which allows it to diffuse a more intense light. If one of them fails, the whole bulb will stop working. Follow these simple steps to repair LEDs:
- Remove the plastic bubble that diffuses the light.
- Find the failed LED. Generally, the latter appears blackened inside, but you can also use a diode-based multimeter.
- Short-circuit the faulty LED using cutting pliers, tearing off the upper part (visible) of the LED.
- Place a tin ball on the visible metal part of the LED, so that the current can flow. To do this, use a soldering iron.
Your bulb should work again. It will obviously lose some intensity, but since there are usually 10 LEDs per bulb, you will only lose 10% intensity.
Last word : Repairing a commercial LED bulb yourself is possible, easy and fast! You must first remove the translucent plastic to access the circuit with the LEDs, locate the faulty LED(s) (by observing the presence of a black dot in the LED or by testing it with a multimeter) and short-circuit the faulty LED(s) by making a tin pellet on it. It is also interesting to recover the still good LEDs if you want to tinker with various luminous objects such as old flashlights!