Automatic Sensor - Auto-on within 3m. Auto-off after about 15 seconds when no movement is detected. Automatically only turn on when it is dark and when movement is detected. Dewanxin LED Smart Sensor Chip with PIR. Reliable performance and high sensitivity. Accurately detect your movement. Super Bright LED Lights - With 6 LEDs in each light, Dewanxin motion sensor light provides enough light to ensure you never stumble in the dark. Fantastic energy saving and environmentally friendly ensure an extra long lifespan for your light. Easy Installation - Easy to install. No wiring. With 3M double-sided adhesive strip and built-in magnet, you can stick it anywhere. Lightweight & Multifunctional - Circular and compact size make it an ideal night light for your bedroom, bathroom, stairs, hallway, kitchen, closet, workshops, basement and other dark places. Battery Operated - This motion sensor LED light is powered by 3 AAA batteries (not included).