Velda UV-C PL lamp 9 W 126615
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Velda UV-C PL lamp 9 W
If your UV-C Filter has been in continuous use for a pond season, the light output has decreased. It is then recommended to replace the lamp. Velda has an extensive range: from 5 to 55 watts. They are lamps with 30% more efficiency and a 30% longer lifespan than the current models.