The 7000 Watt Inverter Series Generator uses inverter technology, which delivers clean, reliable power, like that of a standard home outlet, for use with sensitive equipment. The inverter generator also features a fuel-efficient GX390 electronic fuel injection (EFI) engine capable of operating for as long as 18 hours using only 5.1 gallons of fuel. The EFI technology helps to improve performance and reduce maintenance by preventing engine choke, increasing fuel efficiency and limiting carburetor issues.