A simple way to brighten any dark closet or small space without wires. Provides Energy Saving Motion Activated Lighting when needed. Mount Inside Closet, Cabinet, Hallway or Stairwell. 3 AAA Batteries Included - Average 1 Year of Battery Life. Turns On when Motion Detected - Off 8 seconds after no motion detection. Senses Ambient Light Level - will not turn on if ambient light is sufficient.