6000 W peak. 5000 W continuous. 42 amps at 120 volts or 21 amps at 240 volts. 60 Hz. 1 phase. 13 hp gasoline engine with 6.6 gallon tank. 3600 rpm. 9 hours at 50% load. Portable with 2 wheels and handle. 27 inches long. Purchased by my father (now deceased) and rarely used.