This PREDATOR® 11,500 Watt Dual-Fuel SUPER QUIET™ Inverter Generator runs on gasoline or propane for maximum flexibility and uses a powerful 459cc engine providing clean, efficient power where it’s needed most. An electronic fuel injection (EFI) provides easier start-ups, lower maintenance, and increased fuel efficiency. Designed with efficiency in mind, this inverter generator is built with Electronic Speed Control (ESC) Mode to optimize engine performance, maximize runtime, and lower fuel consumption. The 11,500 starting watts and 9000 gasoline/8100 propane running watts provide plenty of power for demanding applications such as home backup systems, mobile businesses like food trucks, welding, RVs, and more.