... ,single cylinder; 2.recoil start or key start & battery Gasoline GeneratorFeatures:1. gasoline generator, Air-cooled, 4-stroke,single cylinder; 2. power 8 ... /110V220V/110VMax. AC Output4.5KW5.5KWRated AC Output4.0KW5.0KWDimension692x522x545mm692x522x545mmWeight80kgs82kgs 4KW Gasoline Generator GYF5500