The Planted Tank Forum - View Single Post - DIY PAR meter, Yeah you heard me
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Old 01-14-2013, 10:43 PM   #467
HD Blazingwolf
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Measure it against known par values and divid to get correct par. I believe it to be at 61 lux/par. Going against manufacturer numbers. Id measured against my light and hoppy's chart it seems pretty accurate as well
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