"I lived in UK for a while, so I have some appliances needing 220v. It works fine. I used it for a blender, dyson vacuum and it doesn't even get hot. The dyson needs about 2200W tops, So, it is good. I have not used it continuously for hours, but I think for normal use, it is good."
"I sent this overseas where the voltage is 220volts! I sent vacuums and 55" flat panel TV's made for the U.S. So the voltage was different than 110 volts! So far so good using these on my U.S. made vacuums and TV's. 3 months so far. I bought a total of 6 of these. From 1000 watts to 3000 watts. The only negative drawback is that these are heavy! But that isn't anyone's fault actually." -Honest T.
"Great product, heavy duty, transform 110-220 or 220-110, and more! So regardless where you are and what you use, it will do the job. Also has a USB port, and a warning light, in case of surcharge, and a fuse to avoid any damage. Extra fuse are provided with the transformer. I can only recommend it to anyone!" -Marc-Antoine
"Solid and well built easy set-up. We've been using it regularly to make soy milk and others as well as soup with our Joyuz Soy machine from China. Thanks to my friend John who told us that we needed this to be able to use our machine, my wife love's it. If I got another I would go with the 1500 watt version, but this one is great." -Ben McClellan