Battery operated and wireless. Uses AA battery (not included). Ensure the batteries are installed correctly. Includes sensoractivated LED keyhole light and door lock lamp. Motion sensor and illumination Advanced motion sensing automatically detects a human presence and turns on the light. The lamp autoops when movement is detected and autooff occurs after about 5 seconds. Provides targeted lighting for door locks with an LED keyhole light. Wide and practical applications Ideal for small spaces that need gentle, unobtrusive light: bedroom, closet, cabinet, cabinet interiors, hallway, workshop, basement, garage, and other similar areas. Good for doors, drawers, trunks, and garage entrances, as well as locations like oil depots or roof edges where discreet illumination near a lock or entry is helpful. Easy installation and use Comes with an adhesive sticker for simple mounting. Wireless design for easy setup and operation; no wiring required. Scenarios of use Nighttime door access: mount near exterior doors to illuminate the lock when you approach at night. Closet or cabinet navigation: place on a closet or cabinet frame to locate the keyhole or latch without turning on a main light. Garage or workshop entry: install near a door or drawer to clearly see locks and latches while moving through spaces with limited lighting.