Electronic Ballast Guaranteed to Work with Custom SeaLife - Double Helix 9W Pond UV Light Bulb for Germicidal Water Treatment Power Max 5000 18 inches and an arc

18 inches and an arc length of 30

This premium ultraviolet replacement bulb is equivalent in every way to the original bulb

Everything else you see with the big name brands is just wonderful marketing

2" - 4 Pin

Electronic Ballast Guaranteed to Work with Custom SeaLife - Double Helix 9W Pond UV Light Bulb for Germicidal Water Treatment Power Max 5000 18 inches and an arcUV ballast guaranteed to work with your UV germicidal system Features: Guaranteed to work with your UV Germicidal Bulb. Comes complete with wiring diagram necessary to run your bulb(s) Industry leading 5 YEAR WARRANTY UL Listed Ballasts can be complicated. Nobody replaces ballasts regularly. Inevitably, ballasts are needed when you go to change out the UV bulb at your machine's recommended intervals when you realize that the new bulb is not lighting