MOTION SENSOR: Using advanced PIR sensing technology, automatically identifies the human body. Automatically turns on and off after about 5 seconds. BRIGHT LED BULBS: This light only activates in the dark, 4 LED bulbs are bright enough to ensure the keyhole can be seen at night without keeping the porch light on.FOR ANY USE: This type of small light provides soft light ideal for bedroom, nursery, closet, closets, wardrobe, hallway, workshop, basement, garage, stairwell, oil depots, roof, door, drawer, trunk, driveways and many more places. br> BATTERY OPERATION: They are powered by 1 AA battery (not included), please make sure the batteries are placed correctly. EASY INSTALLATION: Come with an adhesive sticker, it can be easily stuck on the door. Use and use easily.Note: 1. The light only works at night or in the dark. 2. With adhesive tape, you can stick it on the door; it automatically lights up the keyhole of the door when approaching. 3. Using advanced PIR sensing technology, automatically identifies the human body: lights up when it detects people and s automatically turns off after 6-8 seconds. 4. The light is not waterproof. Do not install it in a high humidity place. 5. Powered by 1 * AA battery (not included).