FUJINET Outdoor Solar Motion Sensor Detector Wireless Wall Light Weatherproof Security Lighting Black Auto sensor: the light can automatically charge itself at day time (enough sunlight) and light up in dark environment. LEDs can last up to 50,000 hrs, on/off switch. Solar-powered, ultra bright, energy saving, wireless, light for all night The light has a outo sensor function, it will light up when human get close, human body?induction (4-6 meters, max induction angle at 90 ) Provide up to 8-12 hours on by 4-5 hours charging time (Enough sun)