Hozelock Vorton 55 UVC Lamp

Wasn't sure what to expect, however I am throughly happy. Within 3 days it was a far better looking pond. Well worth the money to be able to see the fish again.Easy to set up, 4/5 as I don't know longevity yet

Very effective, but needs to go on timer, otherwise expensive to run.

This UV lamp is the best.BIG and a simple click and twist to get it open.Superior product that will become a winner.