Plenty of Power - With 10,000 starting watts and 8,000 running watts, this unit can handle heavy loads from lights and a refrigerator to a home air conditioner and high amperage power tools. Dual Fuel Technology - This generator runs on gasoline or propane, giving you the freedom and flexibility of fuel choice. Powerful Engine - The DuroMax 439cc OHV engine is a workhorse that provides plenty of power to handle multiple jobs, from powering high voltage appliances to heavy duty power tools. Idle Control - Lowers the RPMs of the generator when not in use, saving fuel and reducing noise.Ideal on job sites where power is used intermittently. MX2 Technology - Get the maximum power from each of the 120-volt receptacles. Choose between operating the generator at both 120V and 240V simultaneously, or at 120V only with full power. Ideal for usage with RVs. Portable, Dual Fuel, Heavy Duty.