Citiger(TM) Motion Sensor LED Night Light, Cabinet, WalkWay Lighting, Human Body Induction, Automatic Dusk to Dawn, Battery Operated, for Kid's Baby Room, Sleeping, Feeding, Indoor Use (White Light) (2 in 1 function): motion sensor and light sensor. Perfect for illuminating hallways, stairways, even bathrooms at night-they make a great way to light up closets, attics, basements, garages, RVs and boats. (Three modes): ON mode, OFF mode, AUTO mode. Switch to "ON", the lamp is always on, and there is no auto-sensing. Slide the switch to "AUTO" to activate the sensor capability. Switch to "OFF", of course it will stop work. (Smart Motion Sensor and Light Sensor Detection): The Sensor Light has a built-in motion sensor that detects movement from up to 10 feet away, and light sensor identifies day and night automatically and will only illuminate at night when movement is detected, and Turns off automatically after 15 seconds if no motion is detected. (Fast and Easy Installation): Detachable back plate with 3M adhesive pads allows you to disassemble the unit for battery replacement, while leaving the back plate in place to allow for easy re-attachment. (long service life): up to 50,000 hours. Powered by three AA batteries (not included).