Giantz 1000 Watt Step Down TransformerGiantz 1000 Watt Step Down Transformer Bought a USA appliance but cannot get it to work unless with the right voltage? The Giantz Step Down Transformer is here to help. It converts AC240V into AC110V effortlessly so that your American made appliance can work in Australia. It is so simple to use. Just plug the transformer into your wall socket and the USA appliance into the power outlet of the transformer and let the latter do its handy conversion.