Offers the highest quality ballast for RAPID START LAMP available to the Plate Making, Film Process , Diazo Film, Silk Screen. Rapid Start Lamp are engineered to provide an instantaneous high voltage to strike the elements with in a gallium or mercury lamp creating a plasma. The ballast continues to provide full power to the lamp in order to sustain the lamp plasma. Other design features permit operation with a constant lamp wattage during input voltage variation to insure a terminal input can adjusted 210V, 220V, 230V, and 50Hz, 60Hz.