Energy-Efficient H.I.D. Solid-State Ballast: Phase II Final Report

The following report presents the results of Phase II, Development of Solid State 150 watt High Pressure Sodium Ballasts. Basically, the objectives of the development program were accomplished, i.e., greater than 90% efficiency, greater than 90% power factor, regulation equivalent to ferro-magnetic ballasts, and energy savings sufficient to warrant the further development of the solid-state HPS ballast for commercial production and marketing.