Air-cooled 7 HP OHV Engine with electric start provides 3500 Watts of continuous power. Surge Watts: 4,400, Rated Watts: 3,500, Start Type: Electric, Engine Displacement (cc): 196, HP: 7, Engine: OHV, Run Time: 8 hours at 50 percent, Receptacles (qty.): 2, Noise Level (dB): 69, Fuel Type: Gasoline, Fuel Capacity (gal.): 4, Low Oil Shutdown: Yes, Battery Required: NO, Battery Included: Yes, Dimensions L x W x H (in.): 24 x 22 x 24 Two 120V, 15 Amp 3-prong plugs, one 120V/240V, 30 Amp locking plug Fully protected power outlets Heavy-duty steel frame with 4-pt. isolated motor mounts Super-quiet muffler ensures smooth, quiet operation Runs for 8 hours at 50% load All-steel 4-gallon fuel tank with easy-read gauge Full power panel with engine shutoff switch, volt meter, circuit breaker, power outlets, and 12V DC battery charger