1. Battery-powered LED lights: The indoor motion sensor stair light requires 3 AAA batteries (batteries not included). Wireless installation helps to illuminate restricted or powerless areas. 2. Extremely bright: The motion sensor stair night light has a 35-lumen lamp, which can illuminate the environment and allow you to see clearly in the dark. 3. Motion sensor and light detection: The indoor motion sensor-powered night light. When motion is detected within a range of 3 meters, the battery will automatically turn on. If no motion is detected after about 15 seconds, it will automatically turn off. This will help extend the battery life. The battery-powered motion sensor LED night light only lights up when it is dark and motion is detected. 4. Easy to install: The motion sensor closet light does not require any tools or wiring. A pack of double-sided adhesive pads is included, and the housing has built-in magnets, which can be fixed anywhere. Note: The motion sensor battery LED light will only move into the room and automatically turn on when the light is dark enough and motion is detected.