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- Nov 14, 2019
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I have an older 30w UV light laying around, it works but i dont know the age of the bulb (Replacement bulb is €100). I only have a small tank (55 gallons) and im considering using it on there. The idea being that even if its an older bulb thats only putting out half of its original capacity, its still going to be effective because of the smaller volume. Cant find much though on degradation numbers. Other than a manufacturer stating that is looses 20% after the first year. But what if you oversize the UV, what about the years after that? 40% at year 2, 80% at year 3? Without these numbers there is now way of knowing when to replace the bulb. Anyway of measuring the output of these bulbs? Or has anyone done any testing on this? Ive seen the BRS testing on T5 bulb life wich was very helpfull, hoping something simular exists for UV.
https://www.aquaristikshop.com/aquaristic/hw-UV-Steriliser-1000-30-watts/208012/
https://www.aquaristikshop.com/aquaristic/hw-UV-Steriliser-1000-30-watts/208012/