First off.. I love the BLUE light discussion folks..

All MJ strains react differently to blue light.. It's all about the strains BLUE light sensitivity... What I mean by this is, Some MJ strains when FLOWERED with too much BLUE light will have a higher leaf to calyx ratio then when being FLOWERED under a much more red spectrum.. ie. a 2K HPS bulb.. I have a Blueberry strain and it's very BLUE light sensitive.. Go figure...lol

If your into studding the effect of blue light and you favorite MJ girls.... Might I suggest growing a single plant under 24hrs of BLUE LED light only.. Use any blue led's you would like 420nm,440nm,450nm,460nm,480nm (you get the point)..... OK, I was just joking.... You already no what 24hrs of blue light only dose.... It just keeps your girls vegging... I no what your thinking (no sh*t holmes) tell us something we don't know.

OK THEN...

Now take RED only 630nm OR 660nm led's... Ether one works for this experiment and run a single MJ girl under 24hrs of RED led lighting only (no blue light contamination at all)... Run this for aprox 4 months and come post you results here... I think you will be surprised with the results..

Kanna... This should be right up your alley...
Dogznova Reviewed by Dogznova on . UVb an experiment Quick background: I have been using UVb supplemental lighting for many years now and have always thought it added to the finished product in a couple of ways. I had never promoted it's use on these boards because I felt it was dangerous and had real potential to harm people. That changed a few months back on the other UVb thread, and I came out of the closet in strong support of it's use. Well some here who's opinion I respect (like Weezard) held the opposite view and those discussions led me Rating: 5