Sensky Bs020 (improved version) 2-pack 12v Waterproof Outdoor Auto on Off Light Sensor Switch with Street Automation Control Function, Light sensitivity adjustable Light sensor: clock-wise adjust will increase light sensor valuecan work at the daytime, Anticlockwise will reduce light sensor value(can work at night). Product:light control sensor Power source:12V Rated Current:10A Waterproof:YES