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This should be a problem with the voltage, and it is recommended to check the voltage at home.
First of all, consider whether there is a problem with the lamp. If there is no problem with the lamp itself, then it is considered that it cannot be contacted. >>>More
In this case, it is possible that the light bulb is old.
Get a new light bulb! >>>More
1.It is caused by poor contact between the switch and the lamp. >>>More
The automatic flushing toilet will be powered off for a while and return to normal for a while, it may be that the power supply is in poor contact, you can ask the maintenance master to check it.
Disassemble the lamp and carefully inspect the circuits and joints in the lamp. The virtual connection is connected, and each joint is wrapped with insulating tape to do a good job of insulation between the joints.