Motion Activated & Light Detection - The built in motion sensor detects body heat to automatically illuminate the room when detects movement and stay on for 2 minutes after last movement. The light detection sensor will deactivate the LED light the instant it detects light is on to maximize battery life. | Fit Any Toilets - The 3.15 inch long flectional arm fit all kinds of toilets. Lighting up the toilet at night brings you delight of life, relieve the pressure from daytime work. | Better Craft - We takes the lead to update the craft of Claw Welding and Ultra-sonic Heat-melting, only to improve the durability, make each cent you spent counts. | Suitable Brightness - the installed toilet light illuminates the toilet with suitable brightness and beam scale, not to disturb you roommate. And it offers 8 color options to upgrade your experience. | Power by 3 AAA batteries, and please note that the batteries are not included.