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03-03-2008, 08:46 PM #11Junior Member
LED growing- An instructional grow log
SnSstealth,
I'm yet another of the newbie lurkers who joined to watch your thread
Sir, I must say, you are a Visionary, a Pioneer, a Scientist, and from reading your posts on the forum I believe a Gentleman as well.
This is absolutely astounding and revolutionary work you are doing, and I applaud you both for taking the plunge on this experiment, and for sharing the data on your results as well. I hope you continue and share data about your final yield.
Of course I didn't pipe in to merely to shower you with gratitude and accolades, I do have some thoughts to contribute to the discussion on LED grow theory.
One of the earlier posters in the thread said something about how you are the first to do an LED grow with "close to half enough lumens" or something like that, in a tongue in cheek sort of way, but I think he was on to something.
There's a lot of stuff out there now being sold as "LED grow lights" that is really just snake oil. Most of the products just don't put out near enough lumens. My rough calculations about the Procyon 100's indicate they should be putting out somewhere between 8,000-15,000 lumens each. Your measurement of light intensity of 4,000-5,000 lumens meshes well that estimate.
At the same time, the results you are getting with a light intensity as low as 5000 lumens is absolutely astonishing. It's comparable to 50,000-100,000+ lumen Metal Halide and Sodium lamps. It's a remarkable vindication of the theory behind LED grow lighting. By which I mean the theory that by using LED's spectral selectivity and using only those frequencies of light beneficial to plant growth, remarkable power and light efficiencies should be possible.
And you've done it. Cannabis is not a low light crop by any means, and your data is incredibly encouraging. Once you reach harvest and have yield numbers that can be compared to HPS and MH lighting, you'll show the nay-sayers about this tech. You are demonstrating that LED's time has come.
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