UPPZLLXU 18W 2G11 PLL Replacement UV Bulb, Electronic Ballast, for Pond Clarifier and UVC Filter, Effectively Eliminates Bacteria Controls Algae in Ponds (2 Pack)

【Certified 18W PLL Replacement】As a certified 18W PLL replacement (217mm lamp length, 222mm total, diameter 17mm, 2G11-4 pin), it meets CE and RoHS standards for safe use. 【Precise 253.7nm UVC Sterilization】Engineered with premium quartz glass for 95% UVC transmission at the precise 253.7nm wavelength, this lamp effectively eliminates bacteria and controls algae in aquariums, ponds, and water features, making it ideal for pond filters and clarifiers. 【Stable Temperature Performance】Advanced temperature-adaptive technology ensures consistent disinfection performance from -10°C to 80°C, suitable for various water applications. 【Long-Lasting Cold Cathode】Built with robust cold cathode technology, this bulb delivers extended lifespan with minimal maintenance requirements. 【Safety And Compatibility】This UV lamp requires an electronic ballast and is incompatible with inductive ballasts. Avoid direct exposure to eyes, skin, and living organisms., Weight: 0.3968320716 Pounds, Manufacturer: UPPZLLXU