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💧 Clear water, zero compromises — upgrade your pond’s UV power now!
The AffyBulb 11W G23 PLS Replacement UV Bulb delivers powerful 253.7nm UV sterilization with 90% transmittance through high-purity quartz glass. Designed for pond UVC filters and clarifiers, it features a standard G23-2pin base and a compact 236mm length for easy installation. Its amalgam technology ensures stable UV output across a wide temperature range (-10°C to 80°C), while cold cathode innovation extends bulb life. CE and RoHS certified, this bulb offers reliable, cost-effective water purification with excellent customer support.
| ASIN | B0C65P2RCR |
| Best Sellers Rank | 429 in Lighting ( See Top 100 in Lighting ) 1 in UV Bulbs |
| Customer Reviews | 4.3 4.3 out of 5 stars (2,171) |
| Date First Available | 24 May 2023 |
| Item model number | ZW11D12W-H215 |
| Manufacturer | AffyBulb |
| Part number | ZW11D12W-H215 |
| Power source type | ac |
| Product Dimensions | 23.6 x 3.4 x 1.6 cm; 60 g |
T**R
Effective, good water clarity and easy to install.
A straight swap for the more expensive Blagdon branded bulb. Easily fitted and effective. I haven't had it fitted long enough to comment on it's longevity but efficacy is okay. The water has cleared to a level that exceeds my expectations. At this price I can exchange them more frequently if required and still be cost effective.
M**.
Quality UV Bulb replacement for pond
As described, came boxed with foam protection over each bulb tube. Care taken, super quick delivery time. As described fully functional quality product at a very reasonable price.
K**D
Just hope it lasts
Good value
M**H
For external cannister filter
Got to replace a bulb in my external cannister filter. I'm glad to say they were the right ones. Hopefully keep my tank water nice and clear.
Z**4
Good fit
Fitted ok 👍
R**E
It's what I ordered
Easy to fit
D**D
Doesn't work for me
After setting up a new pond early 2025 I left the UV clarifier off to help establish the pond. In December when I was expecting water to naturally self clear it didn't, so I installed my UV light (new last year, Hozelock Vorton) and ordered these new bulbs from Amazon. Switched everything on and bulbs were lit, and as it is December and cold, I was expecting everything to clear up quickly. It has now been two weeks and as you can see from the photo, my pond has not cleared in the slightest and remains very green. Two weeks at this time of year is more than adequate amount of time to make some form of noticeable difference with a working UV. I run adequate filtration and pump size, but these bulbs have made no difference at all. The bulbs do light up, but clearly are not working correctly.
S**S
Starts we’ll
Brought some builds from other company previously and they were very poor quality, in terms of life span and starting. This seems so much better.
C**N
Todo correcto. Funciona perfectamente. El año pasado pedí otra igual y fue igual de bien. Cada lámpara viene durando un año con uso diario de más de doce horas para desinfectar el agua y eliminar las algas microscópicas del estanque de los peces.
R**É
Nice packaged
K**J
Die UV Leuchten sind sind schon im Einsatz im Aquarium und im Teichfilter im .die Wirkung ist optimal.Der Preis ist super,Lieferung hervorragend.Werde sie immer wieder kaufen .vielen lieben Dank dafür grüße Jörg Maurer
F**E
tout ok
V**A
Wow 😍 addio zanzare e moscerini.... È un ottimo prodotto.. quando li arrostisce si sente un po' di puzza(sopportabile) di bruciato
Trustpilot
1 month ago
1 month ago