Features: ?Constant Current output. ?Input voltage:90~130V/170~265VAC. ?Built-in active PFC function. ?Efficiency>85%. ?Protection:short circuit,over voltage,over temperature. ?Cooling by free air convection. ?Fully encapsulated with IP67 level. ?Dimming way: 0/1-10VDC、PWM. ?2~3 times burn-in tests with 100% full toad for more than 24 hours. ?3 years warranty. http://www.adcommerciallighting.com