The Rechargeable Wireless LED Infrared Motion Sensor Night Light Wall Lamp identifies day and night automatically and will only illuminate at night when movement is detected and Turns off automatically after 15-30 seconds if no motion is detected. The Sensor Light has a built-in motion sensor that detects movement from up to 7-10 ft.away. This light can be used to light up your hallways, stairs, bathrooms, bedrooms, closets, storage areas and so much more. Wireless, battery-powered operation means no installation hassles. No electrician is needed. You can install batteries into the unit, mount the light where you need it, and enjoy the safety and security of the unit's 10 lumens LED light.