Voltage Transformer Converter Step Up Step Down 500W 220V to 110V & 110V to 220V

If Your Appliance Is 100-120v,You Can Plug in 110v Socket. If Your Appliance Is 220v-240v,You Can Plug in 230v Socket. If the Mains Is 100v-120 ,You Choose Input Seletor to 110v. Plug in the Mains. For example, for loads near 700w, it's better to choose inverter with continuous power more than 800w.