SEVENSTAR st 500 Step Up/Down Transformer, Converts 220-240 volts (st 500w u/d) Step Up/Down transformer converts 220-240 volts down to 110-120 Volts or 110-120 volts up to 220-240 volts. 500 watts Four input voltages selectable: 110V/200V/220V/240V All range fuse protection with two spare fuses included CE certified Safety break switch to power on and protect from electric shock Two outlets for output in the front