Battery Operated Led LightIndoor motion sensor led stair light requires 3 AAA batteries to operate (batteries not included), with cordless installation helps you illuminate areas that have limited access or no electricity. Ultra BrightSvarog motion sensor stair lights are equipped with 25 lumens output, illuminate surrounding areas and let you see clearly in the dark. Light sensor Motion & Light SensorBattery-powered indoor motion sensor night light will automatically turn on when detecting motion within 3m, and turn off automatically after about 25 seconds when no motion is detected. This will help extend battery life. Only when it is dark and motion is detected, the battery operated motion sensor led night light can turn on. Easy to installmotion sensor closet light no tools or wiring required 'is necessary. With double-sided adhesive pads provided in the package, and built-in magnet in the case, you can stick anywhere you want. NoteOnly when it is dark enough and detects movement, the indoor motion sensor battery led light can turn on automatically, otherwise it will not turn on.