Ace Up 4 Stroke Inverter Generator. Peak Watts 2500W. Running Watts 1900W.Rated output AC 120V, 60 Hz, 15.8A. Engine Type is Single Cylinder 4 Stroke.Rated speed is 5000 RPM. Fuel Tank is 1.32 US Gallons. Fuel Type is Gasoline. Quarter - Load Run Time is 7.5 hours. Product Weight is 50.7 Lbs. Single Phase. Insulation is Class F. Max Ambient Temperature is 40°C.