1. Input:90-264VAC 2. CE,FCC,ROHS,PSE,UL approved 3. packaging:PE bag ... completely meet safety requirement(UL,CUL,PSE,GS,CE,FCC,CE,EK,SAA,BS Approved). 2.You can ... .............. ±1% InputVoltage range............... 100~264 V AC 47~63 HzEfficiency ..............> 75%AC Current (Max) .................. 0.15A/220V 0.25A ... ............ 20%~95%RH wall mount 3V 1A AC DC Switching Power Supply with CE UL PSE