Used Item Closed end quartz tube/sheath and UV Lamp which was used for a couple of days testing ballasts. Tube odiameter 25mm, internal 21.8mm The New LightTech GH036T5l/4 Professional UV Germicidal UV Lamp 87W is a high-powered water treatment solution designed to effectively stuter erilize water in ponds and other outdoor water features. With a power consumption of 4W, this UV lamp from LightTech ensures crystal clear water by eliminating harmful bacteria and microorganisms. The included UV bulb guarantees efficient and reliable performance, making it a practical choice for maintaining clean and healthy water in your garden or patio.
eBay