1.with wheel and handle, easy for move 2.arc-panel protect panel better 3.stable output,low noise 4.OEM GeneratorRated watt: 8,500W(Marked)/7,000W(actual)Surge watt: 7,000 WSurge watt: 1,000W(Marked)/7,600W(actual)Frequency: 50HzOutlets: Three 230V/50HZ Grounded receptaclesVoltage regulation: automatic voltage regulator16HP gas engineMarked UL&CE in electric accessoryElectric start (with battery) ...