Goldsource STU-N Series 5000W Heavy-duty Step Up / Down Voltage Transformer / Converter with US Standard, Universal, German/French Schuko AC Outlets & DC 5V USB Port - AC 110/220V, 5,000 Watts CE Certified step-up and step-down AC voltage transformer converts from 110V up to 220V or from 200/220/240V down to 110V. (Please note a voltage converter does NOT change the frequency, in another word, what goes in is what comes out, either 50 Hz or 60Hz) 5,000 watts Maximum Load Capacity (MLC), most suitable and cost-effective for high power devices such as vacuum cleaners, refrigerators, espresso machines, commercial food mixers and blenders with the Maximum Power Consumption (MPC) between 2500 and 3500 watts 6 AC outlets available, ideal for using multiple devices at the same time, plug in up to 4 devices concurrently when stepping up and up to 2 devices when stepping down. (The total MPC of all connected devices must NOT exceed the MLC of 5000 watts) Four input voltages selectable: 110V/200V/220V/240V All range fuse protection with two spare fuses and one plug adapter included