Description 13 watt PLS UVC Germicidal Bulb. PL-S H Type UV-C Germicidal Bulb is available in 13, 11, 9, and 5 watts. The compact size of the lamp allows for a small system design and design flexibility. Compact PL-S H Type UV-C Germicidal Bulb allows for easy replacement. 11W – 9.2″ (234mm) 13W – 7.08″ (180mm) 9W – 5.2″ (134mm) 7W – 5.2″ (134mm) 5W – 4.13″ (105mm) The effective life of a replacement UV lamp is approximately 8000 hours. PondH2o’s compact PL-S H Type UV-C Germicidal Bulb allows for easy replacement. The effective life of a UV lamp is approximate, after this point it will seem to be working but in fact the effectiveness of the lamp will be decreasing and need to be changed. Changing a bulb twice annually will usually be good enough to maintain the filter light unit. UVC lamps in water garden ponds utilize ultraviolet light to destroy or control algae, bacteria, and parasites. The UV radiation disrupts their DNA, preventing them from reproducing and causing harm. This helps maintain water clarity, reduce disease, and promote a healthier pond environment. Visit PondH2o’s information center to read more on proper Spring Cleaning technics and tips for a water garden koi fish pond by clicking HERE. As always, remember to check our Facebook page for coupons and news.
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