We know that the use of LED lights is now more and more common, because we know that LED lights are not only beautiful but also more energy-efficient, so there are more places to choose to use. Then there will be some failures when using LED lights. What should I do if the LED lights do not light up? Now let's introduce the reasons why the led light does not light up? How to repair the led light not on?

The reason why the led light is not on
1. First of all, we can first check whether the led dome light does not work properly due to the power supply part, which causes the bulb to not light. If so, check the power supply line. If the power supply is normal, the indicator light above the led dome light will be on. .
2. Next, in addition to excluding the power supply, if it is still not on, we also need to check the positive and negative pins of the led dome light to see if the led dome light we operate is properly connected during operation. If there is an incorrect operation that causes the bulb not to light up, re-soldering the LED ceiling light can generally solve it.
3. The quality problem of the LED lamp bead itself can also cause the LED lamp bead to not light up, because some LED lamp bead chips have leakage, which is also easy to cause the LED lamp bead to die after a period of use. The solution is to try to prevent the lamp. The beads are stored in a humid environment for a long time to prevent the LED lamp beads from not lighting up due to leakage of the internal chip caused by moisture. The short circuit of the led dome light may also cause the led dome light not to light up. This situation may be caused by some small companies having virtual welding in the production process of the led dome light, and the open circuit caused by the thermal expansion and cold shrinkage of the led dome light extruding the gold wire.
How to repair the led light not on
1. First of all, we can first check whether the LED lamp bead does not work properly due to the power supply part, and the lamp bead does not light up. If so, we can check the power supply line. If the power supply is normal, the LED lamp bead is connected to the above indicators. The lights will come on.
2. Next, in addition to excluding the power supply, if it is still not on, we also need to check the positive and negative pins of the Led lamp beads to see if the Led lamp beads we operate are operating correctly. Connection, if there is an incorrect operation that causes the lamp bead to not light up, re-soldering the LED lamp bead can generally solve the problem. Check whether the LED lamp bead is not bright due to the false welding of the LED lamp bead pins, the temperature is too high during welding, and the welding time is too long. If so, the solution: use rosin flux to solve the problem that the LED pins are not easy to be tinned.
3. In addition, when working, pay attention to the temperature during welding should not be too high, try not to exceed 270 degrees, and the time should not exceed 3 seconds. Check the current of the LED lamp bead, and check whether the current at both ends of the LED lamp bead exceeds the working current of the LED lamp bead. If so, this situation is also likely to cause the LED lamp bead to not light up. The solution is to choose a suitable constant current power supply. Try not to buy those power supplies. In order to prevent the LED lamp beads from breaking down due to excessive power supply current, the lamp beads will not light up. Excessive static electricity is also the reason why the LED lamp beads are not bright. The solution is to wear anti-static gloves or related protective equipment when DIY led lights to reduce the impact of static electricity on the lamp beads.
The above is what we have introduced to you about the reason why the led light does not light up? We should have some understanding of the related problems of how to repair the led light if it does not light up. If the Led light does not light up, then we must first find the cause, and then find the correct solution, so that the correct solution can be done. I hope our introduction can help you.