BA-ICE-S Ultraviolet (UV) Ballast for R-Can Environmental / Sterilight Ultraviolet Systems (fits all "PA" model R-Can Sterilight UV systems) The R-Can / Sterilight BA-ICE-S Ultraviolet Ballast is designed to fit all R-Can / Sterilight PA model ultraviolet systems.All The BA-ICE-S ballast has an electronic design, offering constant current output to the UV lamps. This constant current allows for consistent UV output, which is what makes for an ideal Ultraviolet system. The BA-ICE Sterilight ballast is designed to deal with variations in voltage and frequency, as well as protect the UV system from electrical transients (brown-outs and current spikes). All BA-ICE R-Can Environmental / Sterilightﾮ ballasts and controllers offer both an audible and visual alarm, allowing for simple troubleshooting. The R-Can Environmental / Sterilight BA-ICE-S electronic ballast holds electrical certification from a recognized third party (ie.CSA) before going out to the customer.