The Hyundai HY8500EFI is a fuel-efficient, portable inverter generator powered by a massive 420cc engine with EFI and class-leading inverter technology. This powerful generator produces 8,500 surge watts and 6,800 running watts of clean energy free of voltage spikes, making it safe to power and charge electronics. The heavy duty design is easy to transport because of its built-in wheels and top-mounted folding handle. The HY8500EFI is one of the only generators on the market to offer electronic fuel injection (EFI); this constantly monitors and optimizes the engine’s air-to-fuel ratio in real-time, increasing fuel efficiency, reducing emissions, and simplifying use. Tired of wasting gasoline? The EcoMode throttle feature automatically adjusts the engine to prevent the usage of unnecessary gasoline while you plug and unplug items throughout the day. Furthermore, the fuel-efficient 5.5 Gallon tank provides 15.5 hours of run time at a 25% load allowing you to enjoy a full day of clean energy. The unit is perfect for both professional use and home backup power.