This is the WDC190E welder 3500 watts generator that is designed with a gas-powered GX390 engine that features a high capacity fuel tank (6.1L), (2) 120V 20A, (1) 120/240 30A. This unit features an electric start for simple operation with a Run Time of 2.75 - 3.5 hours with a decibel rating at 23 feet :70.5.