... / Two years warranty. LED power supply 50W 100W150W 200W Universal AC input / full rangeApprovals: ETS/EMC/ CE ... Withstand voltage ........................... I/P -O/P: 3.0KVAC/1min I/P -F/G: 1.5KVAC/1min O/P-F/G: 0.5KVAC ... EN60950EMC standards ............................... GB9254, EN55022 classB, EN55024EN61000-3-2,3, EN61000-4-2,3,4,5,6,8,11Cooling method ............................... convection ...