Energy-saving design, auto stop working in strong light, IR motion sensor which automatically turns light on and off in the dark based on movements of human body. 4 x LED bulbs as lighting source, which are energy efficient, long time lasting with no worry about maintenance.In addition. We offer 30days money back or free replacement and one year warranty. Easy installation with attached double side adhesive tape for any smooth place.1x AA battery powered (NOT INCLUDED). Small size and can be used almost all places where light is needed for you in the dark, keyhole, kitchen, hallway, stairway, safe cabinet and etc Note: this led light is prefect work in dark place,please use it at night or dark room.As the stronger the light, the less sensitive the motion sensor.