Elecrainbow LED Sensor Night Light - Perfect for Bathrooms, Basement, Hallway, Laundry Room, Stairwells, Path, Closets Automatic sensor: the light activates when people get within 10 feet, and will shut down 15 seconds after people move out of the sensing range. Easy installation: With a detachable back plate featuring adhesive pads, you can easily change the batteries and keep your light on the wall or shelf. Battery Operation: requires 3 x AA batteries (not included); Energy saving and environmentle protection.