4000W Watt Step Up Down 220V? 110V Electric Power Voltage Converter Transformer. 4000W Voltage Converter Heavy Duty. 110V Step Up /Down Power Transformer. For example, if you have an appliance rated at 100 watts, you will need to pick a transformer with a maximum power of 250 watts or greater.
Maximum power capacity:4000W Dimensions:33.5cm25cm22.5cm/13.19in9.84in8.86in G. To convert 110 volts to 220 volts. To convert 220 volts to 110 volts.Check carefully to be sure no error has been made.