Buy factory-direct and save! Electric Generators Direct is your online EF2000iS Yamaha EF2000iS - 1600 Watt Inverter Generator superstore. We offer a wide selection of portable gas generators, propane generators, natural gas generators, tri-fuel generators, portable diesel generators, used generators and professional generators from Briggs & Stratton, Coleman Powermate, Generac, Guardian Home Generators, McCulloch, Mitsubishi, Robin Subaru, Winco, Yamaha and Honda Powered Generators.