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Generally, there are two ways to install it, one is that the lamp itself is directly stuck into the hole with a circlip, and when disassembled, the circlip is broken by hand and pulled out directly; There is also a detachable frame on the lamp, the frame has screw holes fixed on the ceiling, the lamp is fixed on the frame with screws, you need to open the cover of the frame first,,, if you really can't understand it, or find a professional electrician...
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It's very simple, you first use a flat screwdriver to pry off the white plastic shell on the outside, which is a buckle, and you can see the screws or clips on the inside.
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The inside should be buckled on top with a spring, and the spring should be visible with force, and it is not difficult to take it off.
First of all, it hasn't rained for a long time, and just because it's dry outside doesn't mean there's no water. There will be a thermal insulation layer under the waterproof on the top floor, and if there is water in it, it will not dry for 3 months. >>>More
Judging from the picture, the gap is not evenly balanced, and if you flick it with a tool from the corresponding direction, it should be aligned, and there will be no big gap, try it.
It was the same in our family a few years ago.
It is caused by the lack of waterproofing upstairs, and it is necessary to coordinate with the residents upstairs to solve it. >>>More
If you have any objections to this, you can negotiate with the property to deal with it.
If the material is not good and not clean, it is the discoloration and oxidation of the material itself, some of which are black and some are yellow. The material itself is not resistant. >>>More