This Generac Portable Diesel Generator provides reliable power for jobsites and agricultural applications. True Power technology provides less than 6 total harmonic distortion for safely running sensitive electronics, tools and appliances. 4 120V 20A GFCI outlet, 1 120V 30A twist lock, 1 120/240V 20A twist lock outlet, Surge Watts 5,500, Rated Watts 5,000, Engine Yanmar, Fuel Capacity gal. 12, Start Type Electric, Battery Required Yes, Battery Included No, Run Time 32.4 @ 1/2 load, Engine Displacement cc 435. Hour meter tracks maintenance intervals Single-touch electric start Durable fully welded 1.25in.