Inverter generator 9.1 hours of continuous operation. Multi-monitor led display. Receptacles: duplex 120V (20 Amp), locking 120V (20Amp). Generator: full copper windings, brushless design, AC DC circuit breakers. Subaru-robin: air-cooled 4-cycle single cylinder OHC gasoline engine, idle switch features full power mode, low oil automatic shut-off, auto decompression / electronic ignition, overhead valve for more fuel efficiency, recoil starter.