single cylinder ,air-cooled.4-stroke,gasoline generator gasoline generatorRated power : 2.5kwMax.power : 2.8kwRated frequency:50.60Hz1-phase rated voltage: 110V,120VDC output: 12v/8.3ARated rotation speed: 3000/3600rpmFuel tank capacity: 13.4LStructure type: open-frame type