This Goldsource ST-2000 Step Up & Down Transformeris mainly for use in the UK or other European country to power electrical equipment from the USA. What it does is convert UK 220 - 240 volts to US 110 - 120 volts. The output is pure AC and the voltage converter can be used with all appliances rated 0 - 2000W. This voltage converter will take US two pin and three pin plugs.
This can be used for everything with a rating of 2000 Watts or below (although in practice it is a good idea to allow some margin for error). This would include just about everything from computers, TVs and Hi-fis to most heavy duty industrial equipment (check rating to be sure). This is a heavy duty desktop voltage converter and it weighs nearly 13KG. Simply plug the voltage converter into a UK socket and plug the US plug into the voltage converter.