How much does this cost to the nearest dollar?

Starlite 3000 Watt Step Up/Down Voltage Converter Transformer 5 Year Warranty, Fuse Protection and Automatic Voltage Regulator - - 110 to 220 V or 220 to 110 V
Which size to buy What size (capacity in watts) transformer you want to buy depends on the input watts required by your item. If your device does not mention watts then use this formula to derive watts from other information. Watts = Volts X Amps. For example, a 1.1Amp device which runs on 110 volts would be 121 watts. Remember to leave at least a 100% slack for the transformer. Using them to maximum capacity will eventually burn the transformer out after prolonged use. So for that 1.1 Watt device buy a 300 watt transformer

Price is $125.00

Price: $124.95