The Viqua BA-ICE-C controller is used in the Cobalt systems. This electronic ballast fires low pressure high output lamps only. The ballast was designed to have a water-tight case and allows the operator to monitor the system's condition through it's 4 segment LED display. Visual Power IndicatorAudible Lamp Failure AlertLamp Replacement ReminderVisual Lamp Life RemainingTotal Running Time DisplayedThis controller operates from 100-250V The power cord being sold separately. NOTE: Compatible with VP600, VP950, SC-600/740 Professional UV systems