Motion Sensor and Light Sensor: Our under cabinet lights auto turn on when human motion is detected within 120 degree and 16 ft in a dark or low-light environment, and auto turn off after no motion is detected within 20 seconds Ultra-high Quality Light Source: 6 pcs 0.5W 140 Lm/W Ra 90 LEDs output 60 lumens with high CRI. Uses high light transmittance lens, our under counter puck lights offer higher luminous efficiency, ensuring superior brightness while consuming less power Battery Operated: Each night stair light is powered by 3 AAA batteries (not included). Uncomplicated and safe, no worries about the risk of electric shock to children. To save power, it won't turn on if there's enough light in the area Split Design and Easy Installation: Just twist it, our motion sensor closet light is easy to remove and reinstall when the battery needs to be replaced. Customized ultra-adhesive pads ensures a stable installation and can be easily mounted on any surface Mini Size and Wide Application: 2.76 inch samll size makes our motion sensor light indoor perfect for anywhere you need extra light, such as kitchen, pantry, hallway, stair, basement, garage, laundry area, under cabinet, closet, drawer, safe, mailbox