... ROHS certificate. 4/ Two years warranty. LED power supply 50W 100W150W 200W Universal AC input / full rangeApprovals ... switchInput frequency .............................. 47~63HzInrush current .................................. cold start, 20A/115V, 40A/230VInput leakage current ...................... 0.5mA/ ... -4-2,3,4,5,6,8,11Cooling method ............................... convection led power supply