CNZ 18-watt Germicidal UV-C Replacement Bulb, 2G11 Base (1-pack)

Last only three days. Tried to explain to seller and seller refuses to acknowledge that it was not working. Beware of horrible product and seller. Place in a new bulb which I paid a little more and I see the blue indicator on my pond clarifier.

So far works just as good as the more expensive bulbs, let's see how long it lasts.

CNZ 18 Watts 2G11 Base UV-C Germicidal Ultraviolet Light Bulb QTY 2 was exactly what I hoped it would be, the water in my fishpond cleared up within a couple days and now stays clear as long as I clean the filters on my pumps. It fit my Sunterra clarifier perfectly. I was amazed that the store that sold me the clarifier did not carry the bulbs, but I found one locally and used it last summer. It cost me what I paid for 2 from amazon.

I bought this for an Aquarium UV (Coralife TurboTwist). It fit perfectly and was very inexpensive compared to the "pet store" ones being sold. It was like getting two for the price of one. These bulbs in this application need to be changed out about every 9 months to be most effective, so I was very happy with the value for my dollar.

We have a pond with fish in it. Therefore, we have a UV light to help with algae control. The UV lamps seem to have a rather short lifespan so we purchased two spare lamps. As luck would have it, we haven't had to use either one yet. These lamps are well made and priced by the pair to help keep the cost low.

Overall, very pleased with the purchase. Bulbs were delivered brand new, well-packed and in perfect condition. Product was as described. Also, one of the lowest total cost on the internet for these UV bulbs. I use these UV bulbs as a sterilizer in my home HVAC system and they do a great job.

Cant be happier they fit in my coralife Turbo Twist UV sterilizer at a fraction of the name brand cost.

No problems great product