This is a brand-new germicidal lamp used in various systems by Aqua Treatment Service (ATS) under part number ATS1-805, but not made by ATS. It measures about 14 inches) excluding the single pin on each end of the lamp. Its peak output is at 254nm (UV-C). The rated useful life is 10,000 hours. Although nominally rated at 16 watts, some systems will overdrive the lamp for higher output at the expense of a shorter life. This lamp replaces the OEM lamp in these and other systems:
Aqua Treatment Service DWS-6
Aqua Treatment Service DWS-7
Aqua Treatment Service DWSW-6
Aqua Treatment Service SE-7
Aqua Treatment Service ATS1-805
ATS DWS-6
ATS DWS-7
ATS DWSW-6
ATS SE-7
ATS1-805

This lamp is EPA regulation compliant