... 72W LED Lighting Transformer 1)input voltage: AC 100-240V 50/60HZ2)range voltage: AC 90 ... -264V 47/63HZ3)constant voltage4)LED lighting,led strips Safety ... Approvals UL/CUL, PSE, GS,SAA,C-TICK, CE, CB, FCC, and KC-Mark Protections1)over voltage ... 20-853)opera ting relative humidity:595%RH4) Withstanding voltage: AC 3,000V (minimum), 5mA (maximum) ...