1. When the ceiling board is a square board (generally about 30cm square), first remove a square board next to the ceiling lamp, and use a wallpaper blade to reach a certain size in the gap between the ceiling lamp and the surrounding square board. Then the blade will pry the square plate around the ceiling lamp downward, and then pry the adjacent edge of the new pry edge of the plate to remove the plate. After that, separate the connecting wire of the ceiling lamp and replace the ceiling lamp. After changing the lamp, refit the square plate just removed.

2. When the ceiling board is strip (that is, strip), to remove the ceiling lamp, it is necessary to first remove the buckles on both sides of the strip where the ceiling lamp is located, then take the strip and change the lamp.