Goldsource 3000W ST Pro+ Auto Step Up & Step Down Voltage Transformer Converter, Upgraded Heavy-Duty AC 110/220V Converter with US Standard, Universal AC Outlets & DC 5V USB Port [3-Year Warranty]

Product arrived quick. I've used the step up transformer for about 3 hours and it definitely works as advertised. Good simple instructions come with the unit. I don't have a way to test it for how many watts it puts out at this time. Would definitely recommend to this point.

Fast delivery and worked as it stated.

Very disappointed with this product ..one of the fuses popped which I needed to replace but the whole housing broke while trying to unscrew the top section .Now I am unable to remove the popped fuse which then makes using this a problem . This should be covered under the warrenty period of 3 years I would like the seller to contact me as there is no indication as to contacting this seller unless I am missing something @Amazon can you assist

Used to convert 110v to 220v for a server power supply. Works exactly as described.

Works good and came with extra fuses(for both 120 & 240) and a 240 adapter plug. Had lots of issues with shipping however. Had to order twice before I got one that wasn’t damaged in shipping because of the coil weight. Even that was slightly bent but I needed it more than I wanted to return it again and it was working. The unit works great however!

Works like a charm

So heavy!! It's definitely ready for our move to Africa! Don't use on carpets cause you'll burn them... That's true of all transformers

Over 2 months for delivery, delayed twice, then received one month earlier than the second delayed delivery date. Great product with very poor inventory and shipping management

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