适用于螺纹直径28mm的感应开关安装，可以直接拧进去固定，不用后螺丝，盒子的长和宽和电源盒一样，可以粘在突出的电源盒子上。

感应开关覆盖角度为120°，放置在角落基本可以覆盖全房间，非常方便。

It is suitable for the installation of induction switch with thread diameter of 28 mm. It can be directly screwed in and fixed without back screws. The length and width of the box are the same as those of the power box. It can be glued on the protruding power box.

The coverage angle of the induction switch is 120 °, and it can basically cover the whole room when placed in the corner, which is very convenient.