The PIR sensor light is designed for the areas where are not bright enough but do not need to turn on the light all the time in your lives. It will automatically turn on as people approach the working area where the device is located. This function greatly prevents people from falling over, tripping over objects, and wasting energy. In order to let the user could optionally install our products at any selected place, designer use battery power supply instead of traditional ways. Also, it greatly reduces the inconvenience caused by installation and reparation. Product Description: 1) The battery-powered light, is wireless and includes a motion sensor, and very easy to install. 2) Simply insert 3pcs of AA batteries and attach this device onto a selected wall. The device includes 2 types of mounting options, 3M adhesive tape with mounting bracket and 2×screws with mounting bracket. 3) The built-in photosensitive resistance and PIR sensor is activated when both darkness and motions are detected. Automatically turns off 30/60 seconds after the last body movement was detected. 4) This super bright LED light can be placed anywhere around the home, in hallways, stairways, baby rooms, bedrooms, closets, garages, attics, basements and emergency exits.