Review on Fulham Lighting Workhorse Adaptable WH22 120 C by Alex Tilden

This should replace the same phase a little over 2 years ago. It is used for UV water treatment in a small carp pond. Replace the bulb annually but I figured the ballast would last 2+ years. A timer is set in the settings, which includes a cycle of 8 hours per day. Maybe it has something to do with ephemerality, not sure. Still, they're inexpensive, so I can have a spare on hand in addition to a lightbulb.