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The place of contact is loose. Tighten the bulb and that's it.
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Poor contact is a factor. If you're using a fluorescent lamp, it's probably the opposite of the positive and negative poles.
The contact of the wire end is unstable, open the box and close the main switch, and divide the head of the line to see if it is firm!
First of all, determine whether your light strip is a high-voltage light strip or a low-voltage light strip, if it is a high-voltage light strip, 15 meters is no problem, if it is low-voltage, half a plug is connected to 5 meters, otherwise there will be a pressure drop.
It may be chronic enteritis, so it is better to go to the hospital for a look.
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There are two reasons that can cause fluorescent lamps to absorb the top source lamp and energy-saving lamp LFD lamp to flash after turning off the light, the first kind of switch controls the zero line. >>>More