Yamaha EF1000iS, 900 Running Watts/1000 Starting Watts, Gas Powered Portable Inverter 1,000 Watt Maximum AC Output/900 Watt Rated AC Output Noise Block Acoustically designed sound reduction system Long Run Time - Runs continuously for up to 12 hours without refueling Smart Throttle Load sensing throttle control CARB Compliant This item cannot be returned