Keyhole light: Get a keyhole automatic sensor light! Powered by: One AA battery (not included). Made using ABS. Sensor: Features a motion sensor to turn the light on when it senses your key. Installation: Easy installation with the attached double sided adhesive tape. LED: Features 4 LEDs, giving plenty of light for you to find the keyhole. Great for: Keyholes as well as cabinets, drawers and dark nooks and crannies.