Prioritize troubleshooting three common problems: 1. Power supply problem: check whether the switch and socket are in good contact and whether the voltage is stable. If the voltage fluctuates too much, it will cause the lamp to flicker; 2. Driving power failure: the driving power supply is the "heart" of the LED lamp. Aging or damage will directly cause the lamp to go out or flicker. You can try replacing the driving power supply of the same specification; 3. Loose lamp wiring: open the lamp housing, check whether the wire joints are firm, and re-tightening can solve some problems.