This might be even better!!! All for 850... Top and side lighting!!!View attachment 5065242
Getting closer to Fluence's indoor spectrum. Both use Osram's Red. Still think Fluence goes further left to blue and right to far-red. I know a little about that, not entirely sure of its significance.
Very little significance. Sure, go ahead and get the spectrum you want, but the differences will not be much. A regular white light led alone will grow very well. Redder spectrum grows a little longer nodes and bluer shorter nodes. UV or near uv may, perhaps, give a tiny bit more thc, but maybe not. The total light output, the efficiency it is produced with and proper light spread for your space are the most important aspects of a grow light.
I was thinking that, then it seemed a little counter-intuitive that fluence's greenhouse-specific spectrum would have a higher efficacy than its indoor spec (by almost 0.4); but fluence's sole-source indoor spec has a far broader/richer color spectrum than its greenhouse-spectrum, which is supplemented by the sun. Sorry, I think a lot of growers try to oversimplify this as a way to justify buying inexpensive lights (sometimes to their detriment).
Dismissing that much science is en vogue, but I don't agree with it.
The science we actually have says the spectrum doesn't matter that much.
Trying not to be dismissive ... asking a follow-up question (i.e., the Socratic Method) is often more constructive.
Are white LEDs used in LED grow lights better for growing? – Platinum LED
platinumgrowlights.com
Why do we want to read that ad?
part of it's educational. i could google and pull any # of similarly-written articles that state the same basic concepts.
ignore if you want to, some folks are fine with a B/B-.
The science we have definitely supports the notion that "Spectrum Matters"Look up bruce bugbee's videos. They prove green is used efficiently by the plants. There's no difference in plant mass between white light and just red&blue.
They pump the blue to pump the efficiency ratings on indoor lights and on greenhouse lights is not so important since the sun is so powerful even on a cloudy day that it fills out the spectrum.I was thinking that, then it seemed a little counter-intuitive that fluence's greenhouse-specific spectrum would have a higher efficacy than its indoor spec (by almost 0.4); but fluence's sole-source indoor spec has a far broader/richer color spectrum than its greenhouse-spectrum, which is supplemented by the sun. Sorry, I think a lot of growers try to oversimplify this as a way to justify buying inexpensive lights (sometimes to their detriment).
Dismissing that much science is en vogue, but I don't agree with it.
The science we have definitely supports the notion that "Spectrum Matters"
Bugbee is just 1 spoke in the wheel of plant lighting science and I kinda feel he is partially to blame for allowing all those pos china blurple lights to flood the market for so many years, so many $$ lost by unsuspecting people just looking to save a few bucks growing their indoor plants
Anyhow, great discussion going on over on this part of the site without the typical bickering and bashing of the LED section.
Here's an interesting read on spectrum and lettuce. The opposite of what is commonly recommended in the led community
They pump the blue to pump the efficiency ratings on indoor lights and on greenhouse lights is not so important since the sun is so powerful even on a cloudy day that it fills out the spectrum.
I am curious, were you the once stating that you can tell in photo's which led spectrums where used? What are the different characteristics you would attribute to the different spectrums?![]()
How about we play "Guess the Spectrum"?
Birthday Funk
View attachment 5066052
Moby Dick
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My question is: Are any of these high priced lights actually worth the price??? And how would you really know??? I would think that you would either have to be rich to buy and test all these lights or these companies let us test the lights for them... And not the cheapest ones, the top shelf ones, to cee if there's any difference in the grow itself...How about we play "Guess the Spectrum"?
Birthday Funk
View attachment 5066052
Moby Dick
View attachment 5066053
My question is: Are any of these high priced lights actually worth the price??? And how would you really know??? I would think that you would either have to be rich to buy and test all these lights or these companies let us test the lights for them... And not the cheapest ones, the top shelf ones, to cee if there's any difference in the grow itself...