Lifan Pro Series LF8500iE 8500 Watt Commercial/Contractor 15 HP 420cc OHV Gas Powered Portable Generator with Electric Start and Wheel Kit with Never-Flat Foam Filled Tires, OSHA Compliant 8500 Watts maximum AC output/7500 Watts rated AC output - GFIC protected 15hp Lifan industrial grade OHV gas engine (Battery not included) 100% copper wound alternator (See details in attached pictures) 6.5 gallon fuel tank with 10 hr run time at 50% load; auto idle feature for power on demand; OSHA certified AVR for stable voltage output (See details in attached pictures), GFCI protected