MECO(TM) 12v Human Motion IR Sensor Automatic Light Switch Infrared Working voltage: DC 12V; Size:6.5cm x 5cm x 3.5cm. Working Temperature: -20- +50. Light control sensors: 5LUX-500LUX 20%. Working Distance: approx. 8m/ 26 feet. ONLY MECO offers the exactly same product!!! DO NOT trust any other sellers!!!