IDEAL LIGHTING: Provides the right amount of glare-free lighting to guide you in the dark. AUTOMATIC ILLUMINATION: When light sensor perceives darkness, motion sensor activates lighting when movement is detected. ENERGY EFFICIENT: Three AAA batteries (not included) provide soft illumination for up to a year. NIGHTTIME NAVIGATION: Eliminates need to turn on blinding lights in the middle of the night. Ideal Lighting Automatic Illumination Energy Efficient