Goldsource STU-N 3000W Series Heavy-duty AC 110/220V Step Up / Down Voltage Transformer / Converter with US Standard, Universal, German/French Schuko AC Outlets & DC 5V USB Port – 3,000 Watt

Made by one of the leading manufacturers in the industry, the Goldsource STU-N series step up/down voltage transformers offer you a safe, reliable, affordable & convenient solution to converting voltages from 110-120 volts up to 220-240 volts or from 220-240 volts down to 110-120 volts for both home use & industrial applications.

The STU-3000N is rated at 3,000 watts maximum. It features a heavy-duty cord with a standard US 3-prong plug. There are a total of five outputs on the front panel. Two are grounded US standard outlets designated for 120 volts only, one universal outlet and another German/French Schuko outlet for 220 volts only. The last one is a DC 5V standard USB jack, a unique feature of the STU-N series & 1st in the industry. And most importantly, all five outputs can be used simultaneously & continuously.

Purchase Guide:


Instapark® Heavy Duty Step Up/Down Transformers aka Voltage Converters, Voltage Transformers, Power Converters, Step Up Converters, Step Down Converters, Dual Voltage Transformers, are meant for worldwide use for all electronics, heavy duty machines, or household & industrial applications.

For safety, it's recommended by the manufacturer that the voltage transformer's maximum power should be equal or greater than the power rating of your appliance multiplied by 1.5. For example, if you have an appliance rated at 100 watts, you will need to pick a transformer with a maximum power of 150 watts or greater.

Input selection:

- 110V
- 120V
- 220V
- 240V

AC output outlets:

- 110V US standard x 2
- 220V universal x 1
- 220V German/French Schuko x 1

- DC 5V USB output x 1