1. First, turn off the switch, with the help of the folding ladder, remove the shell of the led ceiling light, the LED flat light and check whether the lamp tube appears dark and dark. If so, it is very likely that the lamp tube has been damaged. It must be replaced. This kind of LED tube can be bought in hardware stores. It is recommended to choose a well-known brand.
2. Secondly, if the lamp tube is still in good condition, the LED panel light should try to tighten the joint of the lamp tube to see if there is any poor contact. This situation is also relatively simple to operate, and it is easy to happen.
3. Then, if none of the above problems occurs, the LED purification lamp can check whether its ballast is in good condition, whether there is a burning smell, and whether there is a black burning phenomenon on the appearance of the ballast, if so, Then it is very likely that the ballast is the problem. Just replace one, the ballast is more expensive than the lamp.
4. After ,it is to check whether the contact head of the led light has electricity. If the embedded purification light is not, it should be a switch or line problem.
According to the above operation, you can basically find the cause of the defect from the lamp head to the line. At the same time, we should also be careful not to turn on and turn off the LED ceiling light quickly, which will generate inrush current and affect the service life. At the same time, we must keep the air circulation in the room and avoid the humidity in the room.
Benwei Lighting is an LED Tube, LED flood light, LED Panel Light, LED High Bay, LED manufacturer with 12 years of experience. If you want to purchase a high-quality LED flood light or have a more in-depth understanding of the application of LED flood lights, please contact send us inquiry， our web: 
https://www.benweilight.com/.
