The Planted Tank Forum - View Single Post - Convert Lux meter to PAR meter?
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post #2 of (permalink) Old 06-13-2012, 04:08 PM
Children Boogie
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Join Date: Dec 2006
Location: Cincinnati
Posts: 16,743
Can you find the name of that photodiode? Maybe we can look it up to find the spectrals for it.
I notice they use a ultraviolet filter on top of the photodiode.

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