RONAQUA 100-120V 55W Electronic Ballast for 12GPM UV Water Sterilizer with Four Prong Connection to Lamp and Green/Red Indicator Light

Exactly as described, works fine. Came quickly, too

It just what we were looking for and it shipped pretty fast

It is so unfortunate that I cannot find any of these ballasts that will actually outlast the bulbs for my water filtration system. These ballasts are very poor quality and do not even last 6 months. They're expensive for something that needs replacing at least twice a year, if not more often. As I am unable to find any ballasts that actually last and I have a filtration system that requires these, I am stuck buying these pathetic ballasts (at least four a year, one ballast per light and two lights for the filtration system). If you are thinking of buying a water filtration system that requires these ballasts, then find another system. These ballasts aren't worth the headache and definitely are not worth the money you throw away on them.

Works fine, fits perfectly and is less expensive than the original product.

Only lasted 2 years.

Arrived in 2 days and was exactly what i needed.

Ballast arrived well packaged in new condition. After one week of use, water test sample reads excellent! No Bacteria. Time in operation will determine whether it is a good value.

This product worked for my filter. However I had to file some plastic off the lamp terminal for fit. Customers should check their lamps terminal for the pin configuration. My pins (4) were arranged in a slight rectangle configuration and the ballast lamp plug has the terminals arranged in a square pattern. I was able to force the plug on the lamp terminals and the lamp is working. Just an FYI