2000 Watt Heavy Duty Transformer

This device saved the day for me. I used it to power my top-end desktop PC that I shipped from overseas. It handles the pressure very well. It produces absolutely no sound, and doesn't occupy much space. Of course it's very heavy, but that's understandable. The instructions are very confusing and there is no manual. So, what you have to do is to set the red switch on the BACK to 110 and NOT to 230 for your device to work in the US. It took me some time to figure this out and I was a bit worried at first that it was not working properly. I'd suggest that you connect this to one device only. If your device doesn't require so much power, get the one with less watts. It will be much better than connecting it several devices for space and effeciveness.

So far so good~ It's very quiet when turned on (in that it doesn't making humming noise that I hear from other cheaper converters I have). You can only hear a slight humming only if you press your ears to the device (and won't hear it even if it's like 1cm away!). Very quiet!!! It's fairly heavy, but the flat profile, means it takes a bit less space. It might be nice if they actually provided a vertical mode for it (I can't turn it on its side since it has ventilation holes on the sides). It has worked well with both a rice cooker we got from Korea as well as a Samsung ML-1640K laser printer we brought from Korea as well. I also like the fact that it works in reverse, so it'll be useful if I ever decide to move to a 220v area.

The unit works perfectly. It's solidly constructed and silent in operation. I use it to run multiple UK appliances in the US (110 - 220V step up) and I've had no problems. In fact, it's worked so well I regret giving away some of my other 220V items that I could have kept and run through this device.I have two minor issues that take it away from a 5 star review: The power switch is mounted on the rear of the unit meaning that you have to pull it away from the wall every time you want to switch it on. It would be much easier if this was front mounted There is no cable storage meaning it's a bit untidy.

Works great

Nice reliable potted torroid transformer inside, this unit is wired up inside for UK standards, so the neutral (white) is wired up to the circuit breaker, instead of the hot (black/red). I rewired it to mire conform with some USA wiring standards, and added a 20a ammeter on it to better see how it is working. I use this to provide a 4amp or 8 amp 230v/60hz load from a 120v source for (1 or 2) MAC 600 magnetic ballast lighting fixtures that require no higher than 235v each.

I have been using transformers for a while, usually for step-down purposes. This is the first transformer that is serving me as a step-up transformer. While I don't know how it operates in a step-down mode, I can say that in my case is completely and utterly silent which is extremely important to me since it is serving in my musical studio control room. Not a hum! This is the first time that I do not have to apply any, and I mean any sound treatment around it. Besides that, it is much lighter than other transformers I have (and I have or had at least a dozen of them). Two more are already in my stand-by shopping list waiting for the rest of my equipment to arrive from Europe. I cannot testify for its durability, however, since I've been using it for only a couple of weeks now. Rest assured that I will update this review should any unexpected failures happen.

By all means, I wanted to keep. It has a solid quality hardware looks but and produced no sound or smell of any type. It is a toroid transformer so should be of high efficiency. All the being said looks could be deceiving. What it lacks is precision when it comes to output Voltage. I got it to be used with German made medical equipment that is specified for 220V with +-10% tolerance. That's is why 240V output would still be OK. Once I received this transformer I decided to be on a safe side and test using Multimeter before plugging anything of value into it. To my disappointment output showed 252V instead of maximum tolerable 240V. It is good I have checked before it ruined my electronics. Sorry, but it is going back.

My hubby brought his own pc tower from China because he built it himself. When we got to the US, it didn’t work (no surprise) when plugged in. We bought this to be able to convert/adapt the power to use with US outlets. Easy to use - works like any adapter - plug pc into box, plug box into outlet. It has been in use everyday for over a year with no problem. It is a bit heavy but since he doesn’t every move his pc desktop/tower/dual monitor setup, this is not an issue. Happy with the purchase and it does exactly what we want it to do reliably!