SEVENSTAR 800W Heavy-Duty Continuous Use Voltage Converter Transformer (TC 800) This CE Certified 800 watt heavy-duty continuous use voltage converter transformer can be used in both 110V/120V countries and 220V/240V countries with 50Hz / 60Hz Step up 110V/120V to 220V/240V or step down 220V/240V to 110V/120V (switch is on the back of the unit) Fuse protected - 2 spare fuses and " CE" Certified