The MAXSA motion-activated outdoor night light shines a light when and where you need it most: an entryway, a difficult step, a hallway or next to a circuit breaker. The built-in motion detector senses movement within a 10 feet radius, and flips on only when it"s needed. An integrated light sensor activates the unit at dusk to conserve battery power. The three LED lights will remain on as long as motion continues to be detected and will remain on for approximately 30 seconds after the last detected movement. The light is battery-powered and simple to install. It"s also durable and weatherproof, so it can be used both outdoors and indoors. Uses 3 AA batteries (not included).