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If it is an LED lamp, it has nothing to do with the voltage, and this situation is a precursor to the failure of the internal LED lamp beads.
If it's not an LED, it has something to do with voltage.
If you have any other questions, you can consult me.
In this case, it is possible that the light bulb is old.
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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
It should be that a certain section of the line or an electrical appliance has burned out, causing the leakage switch to trip. Let's check them one by one. >>>More
It may be caused by poor contact with the power supply, and it is recommended that you repair the circuit.
Look at the electric heater should turn on the fan. Turn it off after a while, it is estimated that it is overheating protection, and try it when the wind is turned on.