Housmile Automatic Motion Sensor Light, Detachable LED Night Light and Power Failure Light, Cordless Wall Light Step Light for Hallway, Closet, Stairs, Bedroom, Nursery (White) Wireless Charging - Contain 600mAH polymer battery, without replacement of the battery. (Before using, please fully charged for 24 hours) 4 works mode - Motion sensor mode, Power failure light mode, Torch mode, Work/Task light mode. Automatically - Automatic turn on and off. Sensor distance 3-4 meters, sensor delay time 20+/-5s. Perfect light - for bedroom, baby room, bathroom, hallway, stairway or other space. Portable night Light - packed in your bag or pocket, illuminate your way in the dark.