Electronic Ballast Guaranteed to Work with TrojanUV 650140 Compatible Generic UV Light Bulb for Germicidal Water Treatment AL25-2 Both lights are guaranteed to

Both lights are guaranteed to be 100% compatible with the Viqua VH410

This replacement germicidal bulb has a miniature 2 pin (bipin) base that is used for water purification

Rastek T-660

75" and an arc length of 6" and is considered a high quality and highly effective UV emitter in the market

This replacement is not an authentic Atlantic Ultraviolet brand UVC bulb

Electronic Ballast Guaranteed to Work with TrojanUV 650140 Compatible Generic UV Light Bulb for Germicidal Water Treatment AL25-2 Both lights are guaranteed toUV 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