Model TG2500 Engine type: Single cylinder,4-stroke,Air-cooled gasoline generator Rated output power: 2.0KW Max. output power: 2.3KW Rating voltage/A.C. frequency: 220V/50Hz; 110V/60Hz Fuel tank capacity: 15L Continuous operating time: 13h Model TG3600 Engine type: Single cylinder,4-stroke,Air-cooled gasoline generator Rated output power: 2.5KW Max. output power: 2.9KW Rating voltage/A.C. frequency: 220V/50Hz; 110V/60Hz Fuel tank capacity: 15L Continuous operating time: 11h