Just checked it out. Wow it’s pricey!
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UVB will increase THC production UVA won’t do that. You need the very low end of UV ( around 280nm-320nm.) to trigger the UVR8 protein which then triggers the THC production. There are no LEDs today that produce that spectrum at a usable amount, so any LED based lighting is not giving you more THC and are a waste of money. Only UVB fluorescent bulbs produce a good amount of that spectrum.
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My Rule of thumb is less is more with cannabis. She will do her thing.on her own… she might even want to go 4 weeks. Let her set the schedule to harvest unless you have too.
yup it is, and the only thing you will notice is the size of the trike heads(other then the smoke test) , I have a strain i like but it always has small heads, i ran cuts of that strain used green sensation on some not on the others ,same tent…I saw a big difference in the head size. Only ran it once as i got a sample and it is expensive. but i think it works somehow
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do you have a link to an abstract or any literature that can confirm what you’ve written here about UVA & UVB light
I have seen lights advertising 385nm UV light, you’re saying this is just marketing since they are not small enough?
Yes I do. See these pages:
https://www.solacure.com/myths.html?viewfullsite=1
and
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Also see these videos:
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“you are guaranteed to increase THC by at least 15% (for example, going from 17% to almost 20%) and many experienced growers are getting 25%”
Is this a money back guarantee?
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One more video:
Nope, but it does help
UV LED’s don’t work the way a 2 foot uvb t5 does
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An interesting comment (3rd video?) was that the extra THC was at the loss of CBD.
The implication being that there would be less benefit for plants with very low CBD & most benefit to Type II plants (1:1 THC to CBD)… 
Cheers
G
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although I’d imagine you are generalizing but we have found two LED versions that have outperformed the tubes. As Chris has been using the tubes since their inception, I purchased the RayonLED with UVB/IR added and my mentor went with the gavita 1700 with the Gavita UV bars although truthfully the gavita bars did not really add a huge noticeable amount , but we did notice increase in final products THC. The RayonLED was a quite noticeable improvement. Now for all I know it may be the ONLY LED one that truly performs. But it definitely does and well. We did this with a strain that’s been in our stable for 8-9 years and grown out at least 10 times, as close to identical conditions as possible with same nutes, PH, temp, RH, (for the most part) and RO water. I would love to do this again for youtube with more high end products and see who’s really telling the truth because some of these claims just seem ludicrous. If I can get a 2-5% THC increase and make them seem frostier than they already are. Especially the grape stomper I’m 1000000% in .
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This I’ve always wondered? Are we sacrificing some medicinal properties for a higher THC? If so it’s honestly not worth it to me as the CBD addition is what soothes my ailments. And in some strains is the only thing keeping lightweights from absolutely greening out on some of the HIGH HIGH THC , RACY strains
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what is the cost of the of the diodes vs the cost of tubes?
a couple months ago i went hunting for the right nm spectrum of light for UVB LED’s and found some diodes but were in the 90-150$ ranger per diode.
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Definitely ridiculous. Still new ish so they are doing as they do lol. Take advantage of consumers. @Syn
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That’s absolutely ridiculous
Most definately. When you breed for very high-thc , it’s at the expense of other cannabinoids, some of which we don’t even know the effects of yet. Other cannabinoids give character and “legs” to a high, making one distinguishable from the next.
Molasses is supposed to improve yields by up to 20%, sulfur increases terpene production. Some use gypsum and molasses for this combo.
Makes a lot of sense that UV rays increase resin… Outdoors plants grown at 1,800 FT elevation or above will contain 25% more resin than low elevation plants, (though yield may be less)
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Exactly my friend, molasses is very underrated. I just wish I could figure out a way to run it in my RDWC without the staining and biofilm it leaves, and I’m not 100% sure but I’m thinking the sterile element would mess with the molasses. I ALWAYS utilized black strap molasses while running soilless and noticed huge advantages after inception and honestly zero negatives. It’s basically 100% natural Bud candy at a mere fraction of the cost. (Out of likes btw)
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@Upstate I truly believe the other cannabinoids are just as beneficial if not more than the THC itself. As anyone who smokes a lot of different varieties realizes that some super low THC stuff can literally sit even the most seasoned vets on their ass, and then there’s 33-36% strains that you barely feel buzzed. I love researching and learning about this kind of stuff as we are truly only on the brink of understanding cannabis in it’s entirety.
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