Automatic sensor - Auto on within 3 m, auto off after approx. 15 seconds when no movement is detected. Automatically only turns on when it is dark and when motion is detected. LED smart sensor chip with PIR, reliable performance and high sensitivity, accurately detect your movement.Super Bright LED Lights motion sensor provides light enough to ensure they never stumble in the dark. Fantastic energy saving and environmentally friendly ensure an extra long service life for your light.Easy Installation - Easy to install, no wiring. With 3M double-sided adhesive strip and built-in magnet, you can stick anywhere.Lightweight and multifunctional: circular and compact size make it an ideal night light for your bedroom, bathroom, stairs, hallway, kitchen, closet, workshops, basements and other dark places.Battery operated: this motion sensor LED light is powered by 3 x AAA batteries (not included).Product descriptionSize Name:White-3PCSLED body sensor light.Power supply mode: 3 AAA dry batteries (the factory has no battery, AAA battery is the usual 7. battery).Net weight of each product: 42.5 gAdvantage:1. The product comes with 3M adhesive and magnet, various installation methods to choose from, user-friendly design.2. People come bright, people go away. Sensitive and low power consumption.Instructions for use:After the light, when the light is full, if it enters the detection range, it will not light up.2. In places with insufficient light, an active human body immediately lights up when it enters the detection area.3. When the person leaves the detection range, the sensor light switches off after approx. 20 seconds automatically off.4. When the person is always active in the detection range, the light is always on.5. Pay special attention to the test if you test in a dark place, even if the battery is not bright during the day.