About this item Switch between fuel (11,000 surge watts, 8,300 operating watt) and propane (9,500 surge, 7,500 running) with the easy turn of the selection dial Voltage smoothly goes from 120V to 240V, splendid for move switches and emergency backup Electric beginning powers the 457cc 4-stroke OHV engine with the turn of a key 6 tank offers as much as eight hours of half of load run time Includes 4 120V GFCI retailers (5-20R), a 120V 30A twist lock outlet (L5-30R), a 120V/240V 50A outlet (NEMA 14-50R), a 12V DC cigarette-lighter-style plug, a bottle of oil, a 47-inch LPG connection hose, and a two-year warranty