The Planted Tank Forum - View Single Post - Comparison of Lighting Types (Lumens and Watts)

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post #18 of (permalink) Old 12-03-2006, 08:32 AM
defdac
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Join Date: Dec 2003
Location: Linkoping, Sweden
Posts: 125
Quote:
I would be more than happy to retest various light combos with a power meter. All I need is the hardware
No all you need is the spectral distribution, the watt and the lumens output - and some funky math as shown in the Ivo Busko page at Aquabotanic. I've made a calculator for it, and have some values calculated here:
DefBlog - PUR-efficiency list
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