Light power sources:Adopt with large power LED from LUMILEDs Lighting construction: Original reflector made the illumination exert even stronger. Drive electrical circuits: steady voltage and current controls; range-voltage input. Dome: strengthened PC material imported from Germany, resist high temperature, anti-UV radiation, high rigidity surface Supporting bracket: high strengthened varietibility nylon materials Current Draw: 12A/18A Input Voltage: 12DVC Power: 142W//234W Operating Temperature: Minus 40C to 55C Dimension: 1100/1200L*300W*96H mm Carton Size:1450*405*185mm/1330*405*185 mm Package: 1pc/ctn.