Quote Originally Posted by MerryPrankstr
Been a little busy lately so just starting to get round to the measuements I was curious about. This is my first round of data collection for the Procyon 100 luminaire system.

I'm using a CEM DT-1308 light meter for all measurements. I've been trying for a week to get the mete's sensetivity curve but haven't found any info other than what was included in the user's manual(which was so small I couldn't get the numbers off of the scale). The manual also states that the meter is weighted to human sight, but how closely is anyone's guess.

That being disclosed, please take this information with a grain of salt, but it is a good start at quantifying output for these lights.

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Procyon 100
distance from light in inches / output in K LUX
24" / 9 K
20" / 11 K
16" / 17 K
12" / 27 K
8" / 42 K
6" / 64 K
4" / 99 K
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Any comments and discussion is certainly encouraged on my part.

MP
Thanks so much for posting this info.

I grow under 2 Procyons (along with other lights) and I've tried to "eyeball compare" how a plant grows under them as opposed to 150w(18K) and/or 250w(33K) HPS or T5s(20K). Having some numbers to start with sure helps. Your numbers seem reasonable to me.

Great thread, subscribed.