Premium Dual Fuel Portable Generator, Operates on Gasoline or Liquid Propane Gas (LGP), 12, 000 Starting Watts / 9, 500 Running Watts on Gasoline, 10, 800 Peak Watts / 8, 550 Running Watts on LPG, 24 Hr. Run Time at 25% Load, 8 gal. Fuel Tank|JEGS 12,000 Watt Premium Dual Fuel Portable Generator, Operates on Gasoline or Liquid Propane Gas [Electric Start].