Economy American Step Down Transformer – The Economy American Step Down transformers are designed to operate your American 110/120 Volts rated appliance in Australia on the Australian 240 Volts power mains supply. Our transformers include a safety fuse and thermal cut-out protection to ensure the transformer cannot be overloaded. This model is a single wound toroidal transformer, designed to maintain its rating 24/7 and will convert the voltage from 240 Volts Australian mains supply down to 110/120 Volts US rating, allowing your USA device to run in Australia. Note: Our Isolated transformer model includes these protection features plus voltage spike protection and may assist with noise filtering (see here for Isolated version). Simply plug your transformer into the Aussie power wall socket, and then connect your American device into the USA power outlet on the unit. Once they are both connected, switch the power on at the wall socket and at the step down unit, and you’re ready to go! Protect your American appliance – Buy a Step Down that is guaranteed safe: Important Note: Why you should not use a USA stepdown for Japanese appliances Contrary to advice from others – running your Japanese device on a USA rated stepdown transformer will eventually destroy your Japanese device! Most Japanese equipment runs at 100v and by using Japanese appliance on a 110/120V supply, you will encounter overvoltage. This overvoltage can deteriorate your appliance until it will stop functioning correctly. Additional FAQs about the frequency difference & more technical information, please read here. Still unsure which Step Down you will need? Designed for use with American Appliances under 1010 watts