---
product_id: 539083941
title: "11W G23 PLS Replacement UV Bulb,for Pond UVC Filters Machine or Clarifiers"
brand: "affybulb"
price: "€ 25.32"
currency: EUR
in_stock: true
reviews_count: 13
category: "Affy Bulb"
url: https://www.desertcart.ie/products/539083941-11w-g23-pls-replacement-uv-bulb-for-pond-uvc-filters
store_origin: IE
region: Ireland
---

# 11W power for efficient UV sterilization 236mm total length fits standard G23 fixtures 90% UV transmittance at 253.7nm wavelength 11W G23 PLS Replacement UV Bulb,for Pond UVC Filters Machine or Clarifiers

**Brand:** affybulb
**Price:** € 25.32
**Availability:** ✅ In Stock

## Summary

> 💧 Clear water, zero compromises — upgrade your pond’s UV power now!

## Quick Answers

- **What is this?** 11W G23 PLS Replacement UV Bulb,for Pond UVC Filters Machine or Clarifiers by affybulb
- **How much does it cost?** € 25.32 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/539083941-11w-g23-pls-replacement-uv-bulb-for-pond-uvc-filters)

## Best For

- affybulb enthusiasts

## Why This Product

- Trusted affybulb brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Compatibility:** Standard G23-2pin base with exact 236mm length for effortless replacement in pond UVC filters and clarifiers.
- • **Precision UV Sterilization:** High-purity quartz glass ensures maximum 253.7nm UV output for superior water clarity and disinfection.
- • **Certified Safety & Reliability:** CE and RoHS certified, backed by responsive customer support and hassle-free returns.
- • **Long-Lasting Cold Cathode Tech:** Innovative wick design extends bulb lifespan, reducing replacement frequency and maintenance hassle.
- • **Temperature-Resilient Performance:** Amalgam technology maintains stable UV output from -10°C to 80°C, perfect for diverse environments.

## Overview

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.

## Description

【About Us】AffyBulb is a quality manufacturer specialising in the development of UV filtration equipment for ponds. We are committed to providing our customers with safe and reliable products and excellent after-sales service.【Specifications】One UVC 11W G23 PLS replacement lamp, Lamp length : 215mm ; Total length : 236mm ；Diameter 12mm ;Lamp holder model: G23-2pins【Tips for use】1. Before purchasing a lamp, please ensure that you are using the same lamp specification as our product.2. In order to achieve the best results from our products, we recommend replacing the bulb with a new one every 6-8 months.3. Due to the sensitivity of the UVC light source to human DNA, direct exposure to people, animals and plants or looking directly at the light source while using the product is prohibited.【About after-sales service】If you encounter a broken bulb or a bulb that does not light up, please contact us via desertcart station letter and our customer service will do the return/refund for you.【About Invoice】Whether you are a corporate customer or an individual customer, you will be provided with a purchase invoice for all AffyBulb brand products.After payment, the desertcart system will automatically generate a purchase invoice for you, please download it from the order details.

Review: 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.
Review: 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.

## Features

- AffyBulb 11W PLS replacement bulb, built-in 220~240V anti-interference capacitance, more stable output UVC. Widely used in family, hospital, swimming pool, aquarium and aquaculture and other places of purification disinfection sterilization.
- Lamp length : 215mm ; Total length : 236mm ；Diameter 12mm ;Lamp holder model: G23-2pins
- AffyBulb UVC replacement bulb, in order to achieve better disinfection and sterilization effect, we choose a high purity quartz glass tube, so that the UV transmittance of 253.7nm is up to 90%, and the amalgam can adapt to the ambient temperature of -10~80℃, to ensure that it still has a stable UV output under different temperature conditions.
- Adopt cold cathode technology, Independent research and development of long-life wick, prolong the service time. Our products have passed CE certification and meet RoHS standards. Please make sure your lamp specifications match ours before purchasing.
- Practical tips : ①Due to the sensitivity of UVC light source to DNA, it is forbidden to directly illuminate people and animals and plants when using the product, nor to directly look at the light source; ② In the use of any questions, you can consult us, our professional customer service at any time online for you to answer.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |

## Product Details

- **Brand:** AffyBulb
- **Bulb base:** G23
- **Light type:** UVC
- **Special feature:** UVC Disinfection, High Purity Quartz Glass, Anti-Interference, Long Life, Wide Temperature Range
- **Wattage:** 11 watts

## Images

![11W G23 PLS Replacement UV Bulb,for Pond UVC Filters Machine or Clarifiers - Image 1](https://m.media-amazon.com/images/I/617jkne57PL.jpg)
![11W G23 PLS Replacement UV Bulb,for Pond UVC Filters Machine or Clarifiers - Image 2](https://m.media-amazon.com/images/I/71mWs2YR3JL.jpg)
![11W G23 PLS Replacement UV Bulb,for Pond UVC Filters Machine or Clarifiers - Image 3](https://m.media-amazon.com/images/I/71ATTP76K2L.jpg)
![11W G23 PLS Replacement UV Bulb,for Pond UVC Filters Machine or Clarifiers - Image 4](https://m.media-amazon.com/images/I/81l7gOFN-tL.jpg)
![11W G23 PLS Replacement UV Bulb,for Pond UVC Filters Machine or Clarifiers - Image 5](https://m.media-amazon.com/images/I/710VB3-trhL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Effective, good water clarity and easy to install.
*by T***R on 8 August 2025*

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.

### ⭐⭐⭐⭐⭐ Quality UV Bulb replacement for pond
*by M***. on 9 June 2025*

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.

### ⭐⭐⭐⭐ Just hope it lasts
*by K***D on 25 December 2025*

Good value

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---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-22*