Simran Voltage Transformer Power Converter Regulator Stabilizer Power Converter Black (SVR-500) Heavy-duty 500 watt AC automatic voltage Regulator, wide input voltage range with meter display Safe and reliable, large range of stabilization. Input voltage range: 80v-260v AC, input frequency: 50/60Hz. Output voltage: 110V and 220V+/- 5% AC This product is a relay-type high accuracy household voltage stabilizer. Using it can regulate the big range fluctuating voltage into a general voltage output 110V USA outlets accept 2 or 3 prongs US plugs and 220V Universal outlets accept plugs from all countries except South Africa Insulated power cord is wired with a grounded US Plug and a German shuck Plug is provided in the box for use in European/ Asian countries. Fuse protected. Heavy-duty metal case with attached handle