--- product_id: 540507553 title: "2 Pack 18 Watts UV Light Bulb Replacement UV Light for Pond Clarifier for Outdoor Ponds 4-Pin Base" brand: "coospider-repta" price: "£25.42" currency: GBP in_stock: true reviews_count: 8 category: "Coospider Repta" url: https://www.desertcart.co.uk/products/540507553-2-pack-18-watts-uv-light-bulb-replacement-uv-light store_origin: GB region: United Kingdom --- # 8000+ hours lifespan 18W powerful UV output Universal 4-pin base fit 2 Pack 18 Watts UV Light Bulb Replacement UV Light for Pond Clarifier for Outdoor Ponds 4-Pin Base **Brand:** coospider-repta **Price:** £25.42 **Availability:** ✅ In Stock ## Summary > 💧 Illuminate your pond’s purity with cutting-edge UV power! ## Quick Answers - **What is this?** 2 Pack 18 Watts UV Light Bulb Replacement UV Light for Pond Clarifier for Outdoor Ponds 4-Pin Base by coospider-repta - **How much does it cost?** £25.42 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/540507553-2-pack-18-watts-uv-light-bulb-replacement-uv-light) ## Best For - coospider-repta enthusiasts ## Why This Product - Trusted coospider-repta brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Peace of Mind Warranty:** Backed by a 180-day warranty and responsive customer support for worry-free use. - • **Long-Lasting Reliability:** Over 8000 hours of continuous use keeps your pond pristine season after season. - • **Power-Packed 18W UV Performance:** Delivers optimal 253.7nm UV-C light for crystal-clear pond water. - • **Seamless Universal Compatibility:** Fits top pond clarifier brands like AQUATOP, Jebo, and SUNSUN effortlessly. - • **Easy Installation with 4-Pin Base:** Plug-and-play design means no hassle, just pure pond perfection. ## Overview This 2-pack of 18W UV light bulbs features a 4-pin G23 base for universal compatibility with leading pond clarifiers. Engineered with a high-transmission quartz tube and a UV peak at 253.7nm, these bulbs deliver powerful UV-C sterilization to maintain healthier, clearer outdoor ponds. Each bulb offers a long lifespan of over 8000 hours and comes with a 180-day warranty, ensuring reliable, maintenance-friendly performance for pond enthusiasts seeking professional-grade water clarity. ## Description Coospider Let the energy of ultraviolet light illuminate every corner of life. Coospider has invested a great deal of time and resources in researching ultraviolet light, gaining a deep understanding of its characteristics, and application scenarios. We are committed to using cutting-edge technology and materials, continuously optimizing our product design and manufacturing processes to provide the best ultraviolet light solutions. Coospider has invested a great deal of time and resources in researching ultraviolet light, gaining a deep understanding of its characteristics, and application scenarios. We are committed to using cutting-edge technology and materials, continuously optimizing our product design and manufacturing processes to provide the best ultraviolet light solutions. Bug Zapper Replacement Bulb UVC Replacement Bulb Review: Got these for the price - I picked this item because it offered a two pack at a price that I liked. I was slightly concerned when the stock image showed one blue and one clear looking bulb, but both bulbs are the same. Arrived in good condition, no issues. Review: Good bulbs half the price - These u v bulbs work well in my u.V sterilizer for my reef tank They seem to be of good quality.But way cheaper to buy than the usual pet shop brands.I would recommend them ## Features - 【Powerful 18W UV】With a wattage of 18 and a length of 8.75" 4-pin base, provides easy installation and compatibility with various devices. EPA Est. No. 96998-CHN-1. - 【Enhanced Efficiency】With a UV peak of 253.7nm and high transmissions quartz tube, this 18-watt UV light bulb replacement ensures maximum performance and provides a healthier and cleaner water environment. - 【Wide Compatibility】Designed as a universal replacement, this UV bulb is compatible with various pond clarifier brands, AQUATOP, Jebo, Jebao, Tetra, SUNSUN, ViaAqua, Grech, etc. - 【Long-Lasting and Reliable】This UV-C bulb has a lifespan of more than 8000 hours, providing long-term and effective use. It is recommended to replace the bulb every 8 to 10 months, depending on usage and environmental factors. - 【180-Day Warranty】We stand behind the quality of our product and offer a 180-day warranty. If you encounter any issues during the warranty period, please don't hesitate to reach out to us. We aim to provide excellent customer service within 24 hours. - 【Important Safety Note】This bulb emits short-wave UV radiation with a peak at 253.7 nm, which is ozone-free. Please avoid direct eye contact with the light when it is in use as it can be harmful. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C6PRSGBB | | Additional Features | Long Lasting | | Best Sellers Rank | #30,436 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #443 in Pond Equipment | | Brand | coospider-repta | | Brand Name | coospider-repta | | Bulb Base | G23 | | Color | Clear | | Connectivity Technology | Normal bulb | | Control Method | App | | Controller Type | Push Button | | Customer Reviews | 4.2 out of 5 stars 225 Reviews | | Efficiency | Enhanced | | Included Components | Glass | | Indoor Outdoor Usage | Outdoor | | Item Type Name | Bulb | | Light Source Operating Life | 8000 Hours | | Light Source Type | Uv | | Light Source Wattage | 18 Watts | | Manufacturer | coospider-repta | | Manufacturer Part Number | 18W-2G11 | | Manufacturer Warranty Description | 90-day warranty. | | Material Type | Glass | | Model Name | 18W-2G11 | | Model Number | 18W | | Number of Items | 2 | | Package Quantity | 1 | | Power Consumption | 18 Watts | | Shape | Tubular(T) | | Special Feature | Long Lasting | | Unit Count | 2.0 Count | | Voltage | 18 Volts | | Wattage | 18 watts | ## Product Details - **Brand:** coospider-repta - **Bulb Base:** G23 - **Special Feature:** Long Lasting - **Voltage:** 18 Volts - **Wattage:** 18 watts ## Images ![2 Pack 18 Watts UV Light Bulb Replacement UV Light for Pond Clarifier for Outdoor Ponds 4-Pin Base - Image 1](https://m.media-amazon.com/images/I/61TF6K9SBEL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Got these for the price *by T***H on May 2, 2026* I picked this item because it offered a two pack at a price that I liked. I was slightly concerned when the stock image showed one blue and one clear looking bulb, but both bulbs are the same. Arrived in good condition, no issues. ### ⭐⭐⭐⭐⭐ Good bulbs half the price *by W***P on November 18, 2025* These u v bulbs work well in my u.V sterilizer for my reef tank They seem to be of good quality.But way cheaper to buy than the usual pet shop brands.I would recommend them ### ⭐⭐⭐⭐ First light lasted 3 months *by G***K on December 15, 2025* Before, the OEM lights lasted a year plus, this light just started to trip my breaker after 3 months. Fortunately its a 2 pack, hopefully the next one lasts longer or I'll need to look elsewhere. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/540507553-2-pack-18-watts-uv-light-bulb-replacement-uv-light](https://www.desertcart.co.uk/products/540507553-2-pack-18-watts-uv-light-bulb-replacement-uv-light) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-24*