7 W UVC G23 PLS Replacement Bulb, Inductive Ballast, for Pond Clarifier, UVC Filter, Removes Bacteria, Algae Effectively for Ponds (Pack of 2)

7W PLS replacement bulb (bulb length 115mm, total 137mm, diameter 12mm, G23 2 pin socket). 253.7nm precise UVC sterilization with quartz glass for 95% UVC transmission. This lamp removes bacteria and controls algae in aquariums, ponds and aquatic installations, ideal for pond filters and clarifiers. Stable performance from -10°C to 80°C. Long service life with cold cathode technology. This UV lamp requires inductive ballast and is not compatible with electronic ballasts. Avoid direct exposure to eyes, skin and living organisms.