Simran SYM-500 Deluxe 500 Watts Step Up/Step Down Voltage Transformer AC 110V/220V/240V Voltage Converter for Worldwide Use. 500 Watt Maximum Capacity, heavy-duty continuous use transformer Converts 110/120 Volt up to 220/240 Volt OR Converts 220/240 Volt down to 110/120 Volt 3 outlets on rear of unit (outlets accept 3 or 2 prong US plugs and 2 prong Euro/Asian plugs) On/Off switch with indicator lamp ~ Analog meter on front of unit measures exact input voltage. Easy to carry with attached handle, heavy-duty metal casing, fuse protected TRANSFORMER PURCHASE GUIDE:Remember to leave at least a 100% slack for the transformer. For the TVs, the power surge margin is 5 times the wattage of the TV. Heating appliances, laser printers and power tools spike when you turn them on. For these products you need to buy a transformer that is at least 3 times the items capacity.