I have been looking everywhere for more scientific information about UVB and THC and I found this new blog that has a great article about it.
Lot's of people have speculated about this, but apparently scientists have recently found the mechanism through which UVB and THC production are connected. Way cool discovery given Solar Storm's the only LED System out there that I know of with UVB!! Friggin cool!!!! http://silassativarius.org/2014/10/03/does-exposing-your-plants-to-uvb-increase-thc-production/
Interesting read but incomplete. We've known that UVB helps but according to the article we now know the pathway. He goes on to say that now that we know how we can exploit that but he doesn't say how other than using UVB which we already knew.
Still cool in a geek-y kind of way...
Disclaimer: I still use HID and I'm NOT an LED expert. All of my LED knowledge is from other parties or research so I can't say from first hand experience one way or another. I also run a medical grow consulting business in SoCal.
The point, I think of this article is that the "Knowledge" of UVB benefits to this point have been mostly anecdotal. This new information on the pathways lends substantial credibility to the claim that UVB increases THC.