INPUT/ OUTPUT SPECIFICATIONS: INPUT VOLTAGE: 100V-240V AC, 50/ 60Hz RANGE VOLTAGE: 90V-264V AC, 47-63Hz OUTPUT POWER: 0 ~ 4W OUTPUT VOLTAGE: DC 3.7V ~ 24V OUTPUT CURRENT: 100MA ~ 800MA OVER VOLTAGE PROTECTION: 120% min OVER CURRENT PROTECTION: 120% min SHORT PROTECTION: AUTO RECOVERY LOAD REGULATION: ± 5% MTBF: 50000H SAFETY: PSE UL CE GS EK FCC CB BS APPLICATION: LI LON BATTERY CHARGER TESTER MACHINE AND INDUSTRIAL MACHINE COMMUNICATION TERMINALS DIGITAL PRODUCT AND RADIO DEVICE MEDICAL AND EXERCISE DEVICE OR EQUIPMENT