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Don't blame the lamp, it's the ballast on your lamp that is broken.
It would be nice to buy a better ballast.
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Rectifier, just change a rectifier.
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Legend has it that it's an old-fashioned lamp, does it have a ballast? Presumably the ballast is broken.
If it's about the same size or smaller than the previous lamp, there's no need to punch holes
You need to listen to whether it is the lamp holder or the switch, and where the sound indicates that the contact is poor.
The exhaust fan in my kitchen is broken.
This is a normal built-in downlight. You can remove the stainless steel disc of the lamp by hand, pull it down. Just change the lights and push them in.
The fecal pipe to the second floor is used on the third floor, you can find the resident on the third floor, negotiate with him, explain the situation, and ask them to repair it. With dripping water, the leaking pipe can be plugged.