LE Pack of 3 Units LED Night Light, Battery Powered Stair Lights, Wireless Motion Sensor Light, Stick-Anywhere Nightlight, Daylight White, Security Light for Bedroom, Hallway Pack of 3 units Easy to install. Hang it or stick it to anywhere with the self-adhesive foam tape (included). No wiring required. Safe to use. Battery powered, it is touchable and safe to children. No electricity cost. Operate for several months on 4 AA batteries (not included). Smart and sensitive detector. Automatically turn on at night when motion is detected.