2017 Yamaha EF12000DEY Generator Miscellaneous Equipment With up to 50 amps 240V and 120/240 dual voltage output, the EF12000DE can handle most anything during a power outage The EF12000DE is our highest output gasoline-powered 120/240- volt output generator It uses a twin-cylinder 653cc, 4-stroke, OHV engine to deliver 12,000 watts maximum AC output with outstanding fuel efficiency It has the convenience of electric starting (battery not included) and its compact size makes it highly portable It provides 8 hours of continuous operation at rated load without refueling to power up super heavy-load equipment like well pumps, air compressors, table saws and more. Great as a backup generator posted: 02/12/18