The portable Yamaha EF2200iS inverter generator is most suitable for emergencies, tailgate parties, camping, and other outdoor activities. The EF2200iS uses a powerful 79cc engine that provides 2200 watts maximum AC output with quiet operation. Allows 9 hours of continuous operation on a single tank of fuel. Powerful Yamaha 79cc Engine – Provides high power output. Yamaha Quiet Technology – Outfitted with Yamaha sophisticated muffler for quiet operation. Twin Tech Parallel Function – Connect two Yamaha EF2200iS inverter generator in- line with a Twin Tech cable for rated 30 AMPS of power. Standard RV Outlet – No more searching for the right adapter. Tri-Handle – Makes loading, unloading and moving the unit a breeze. Smart Dial Knob – Simple and easy start-up. Smart Throttle – Automatic load sensing adjusts power to device needs. Illuminated Multi-Function LED Display – See generator status at a glance both day and night. DC Outlet – Flexibility to charge and use devices. Overload Reset Button – Easily restore power without shutting down the unit. Yamaha Easy Carb Drain – Prevents stale fuel issues and prepares for long term storage. Tool-less Rear Panel – Easily access engine compartment and perform maintenance. Fuel Gauge – Easily see fuel level at-a-glance.