Lifan Energy Storm ES5500 5500-Watt Lifan 11 HP OHV 337cc 4-Stroke Gas Powered Portable Generator with Wheel Kit and Never-Flat Foam Filled Tires 5500 Watts maximum AC output/5000 Watts rated AC output 11hp Lifan industrial grade OHV gas engine - 100% copper wound alternator (See details in attached pictures) 6.5 gallon fuel tank , 12 hour run time at 50% load Voltage selector switch allows total wattage and amps to be channeled to the 120v receptacles for Additional Starting and Running Power (See details in attached pictures) Receptacles 4 each- 120V 20amp, 1 each-120/240 30amp AC, 1 each- 120V 8.3amp DC, AVR for stable voltage output (See details in attached pictures)