Perfect for the elderly and children, as well as anyone who wakes up in the middle of the night to go to the bathroom. The intelligent motion detection system detects your arrival from up to 3-5m away and lights up when you enter. In addition, the sensing system tells you if the bezel is up or down, emitting a red light when the bezel is up and a green light when it is down. Automatically lights up when you approach in the dark, and when you leave the toilet, shining with soft but sufficient light when you need it. Firmly attaches to any toilet seat, no tools required. Suitable for: hallway, place decoration, hotel lobby, hotel rooms, etc. Material: ABS. Size: 85 x 75 x 25mm. Batteries: 2 AA batteries (not included). Switch type: button. Light source power: 0.3W. Light colors: green\/red