From: Steve Marak <samarak at gizmoworks.com> on 2007.03.13 at 07:06:11(15407)
On Sun, 11 Mar 2007 bonaventure@optonline.net wrote:
> Anyone have experience with LED growlights? From what I've googled, they
> appear low energy use and maintenence, low heat production and efficient
> wavelengths for photosynthesis. Down side is high initial cost and unnatural
> appearing color. Any experience out there? Bonaventure
This is a topic of interest to me also. There are a number of "growing under
lights" forums where I've found the usual mix of people and information (and
disagreement). I had a URL to someone who, true to their engineering
personality, just designed and built a case for their house - lots of useful
information. Unfortunately, I can't find it at the moment, but if I do I'll
post it.
I've about decided to do that too. I'm going to take some measurements of light
intensity (foot-candles for the standard photometer and microE/s/m**2 for PAR,
since that's what the meter seems to use), and see what happens. If someone
knows a reliable supplier of high-output monochromatic LEDs with output
frequencies near the chlorophyll a & b peak absorption points, I'd appreciate a
note - I haven't done that research yet.
The cost, compared to fluorescents, will ensure that this is just an
experiment, but inquiring minds want to know ....
Steve
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