Hobart Ground Power offers a 28.5v DC digital power unit, DPU-600, and diesel-driven 90kVA/60kVA/28.5v DC mobile GPU that combine industry proven designs with next generation technologies to make them more efficient, more environmentally friendly, and easier to use. Hobart utilizes high-frequency monitoring anc control to reduce the voltage ripple and improve the transient response, to protect aircraft during critical operations. The DPU-600 is a plug-and-play power unit with a built-in power supply. It automatically self-adjusts to accept global input frequencies and voltages; 50 or 60 Hz, single phase input at 220v AC or three-phase input ranging from 208 to 600v AC. The small compact design allows for easy maneuverability. For more information visit www.hobartgroundpower.com.