... 1.PF>0.95 Efficiency:93% 2,constant current 2.1A 3,IP67,Rohs,CE 4,Warranty:5years ... advantges90Vac-264Vac Universal input voltage single output and constant current Built-in active PFC function ,PF>0.95Protected functions ... 136-2A10WOutputDC output54-65VdcCurrent range2.1ARated power136WRipple&Noise±25%Current regulation±5%Starting time3000mS/230Vac, 5000mS/115VacInputVoltage range90Vac-264VacFrequency ...