The TigerPower PTO generators are self-exciting, brushless, synchronous generators. They are available in single-phase and three-phase (20kW single phase only). Its rugged design makes it ideal for agricultural operations such as Dairy, Greenhouses, Poultry, Swine, Aquaculture and many other applications where portable power is needed and a tractor is available. It is equipped with an AC voltage meter and an AC RPM (Hz.) meter conveniently located on the front of the unit to allow for easy viewing while adjusting the tractor throttle. It has two 120V convenience outlets and a 240V welder outlet in addition to the 240V full power outlet. The unit is equipped with individual circuit breakers for each power outlet in addition to the main breaker. These units are designed with a drip-proof construction to allow for outdoor use. It contains lifetime pre-lubricated bearings. These units are manufactured in an ISO 9001 certified facility. They come with a 5-year limited warranty.