Danner 40watt UV Clarifier

Unique vortex flow design that increases water contact time with the ultraviolet light, while the slim diameter lamp allows the water to get closer to the intense UV rays. Features the glowing monitor Halo Ring that shows the light is working, above or below water. Visible during the day and night from any angle, the soft blue halo shows it’s working, but the black color does not detract from the beauty of your pond. Each lamp has a 9,000 hour life and comes with a water tight quartz sleeve. Includes transformer and 18ft power cord.