Electronic Ballast Guaranteed to Work with Sentry Ultraviolet - 40W Pond UV Light Bulb for Germicidal Water Treatment Siemens LP4535 Spectral Range: 300–450 nm

Spectral Range: 300–450 nm

Ultraviolet technology provides peace of mind and keeps you protected from various water contaminants such as protozoa

UV bulb for DIY UV air purifier

Agfa - Anapurna M3200i

The Replacement Quartz Sleeve for Ultra Dynamics - 2110UD UV Light Bulb for Germicidal Water Treatment is an open ended

Electronic Ballast Guaranteed to Work with Sentry Ultraviolet - 40W Pond UV Light Bulb for Germicidal Water Treatment Siemens LP4535 Spectral Range: 300–450 nmUV 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