The light bulb is not on or the brightness is insufficient
-Check the power supply: First, confirm whether the power supply connection is loose or damaged. You can try using a power tester to check if the current is normal. If the power supply is normal, but the light bulb still does not light up, you can try replacing the light bulb to see if it solves the problem.
-Check the bulb connection: Ensure that the bulb connection is correct and there is no looseness or poor contact. You can try reconnecting the light bulb or replacing the lamp holder to see if it solves the problem
-Check the circuit: If all the above methods are ineffective, you can use a multimeter to check if the circuit is disconnected or if there are other problems. If there is a problem with the circuit, it can be repaired or replaced to solve the problem.
ADD
Building 1，No.42,Gaoxin East Road ,High-tech Zone,Jiangmen City, Guangdong Province