Specification: Type: Hand Sweep and Stepless Touch Dimmer Switch Voltage: 12V -24V MAX Load: 5A 12V / 3A 24V Penetrating Wood Detection Range:<=25MM Features: 1 Smart touch dimmer leadership sensor swap is used at the back of wood board (like kitchen cabinet ,wardrobe, closet..) or glass mirror. It can paintings on dc 12V led light, And it more flexible to adhere anywhere you like,simple and straightforward to instation. DON'T NEED OPEN HOLE!!! 2 contact sensor can sense the medium materials: wood plate, rock plate, stone, paper, acrylic, plastic, glass, and other non-metallic conductor supplies 3 distance: The diverse thickness touchy is different, the thinner the higher Please do not close to steel supplies to avoid interference