Input Voltage: AC100-240V 50/60Hz 6w Fuse Rating: T1A/250Vac Output Voltage: DC1.7V x 4 Maximum Output Current: 350mAx4 Applicable to AA and AAA Alkaline batteries and Ni-MH batteries (2700mAH max rated capacity of each battery that can be charged). Individual charge circuit for each battery to be charged (Single Battery Charge is compatible), and it is able to charge up to Four Batteries at the same time. Easy LED Indicators. Micro-processor chip controlled system to automatically detect charge process and temperature to prevent over charging. Safety charging timer (4-hour automatic cut-off). Automatic cut-off system after charging completes. Automatic cut-off system when batteries fall off. Automatic cut-off system against overheat. Fool-proof against misplacement of batteries in wrong poles. Input voltage range : AC100V-240V