The OPS-A® model power supplies by Oriel Instruments® are designed to meet the precise requirements for proper operation of Oriel\'s DC Arc Lamps . These power supplies are capable of operating in constant power, constant current, and intensity modes while producing the high stability light output commonly required for radiometric measurement, when used with the appropriate Oriel lamp, lamp housing, and socket adapter. All OPS Power Supplies are RoHS and CE compliant.