the only LED "Fixture" I have seen with UV are the Amare and Spectrum King
I have seen both.....Amazing and.....Super Shitbag grows from both
Sam Skunkman as well as Robert Clarke and others have done experiments using UV and not
the outcome was no differ
what science has seen is the expression of
terpenes in the plant which modulates thc in the body
so.....maybe with uv supplementation plants makes you feel more stoned or high can be due to the higher terpene modulation
but THC dosnt gain from UV or IR
you plant's genetics play the biggest role
UV myth is the same type of myth as MJ specific nutrients
yeah people grow great buds with say AN
people also grow amazing buds with Jacks Hydro
I have grown my plants under my LED COB which emmit no discernible UV
I have also grown the same plants under CFL as experiment (dont try it)
and the sun
the outcome different was terpene (oil production) not to be confused with THC... and size of plant
the list for top oil production
1. Sun
2. Led
3. HPS
4. CFL
for my experiments
on the same cuts that I have
I can link to scientific papers of peer reviewed studies
you would think that Major Cannabis growers would want the most potential out of there plants
but no large op growers use UV
there are many that use LED now but none use UV
and the amount of UV in a MH for example once exerted through the glass is neglegable at best
I am not trying to rain on anyones parade
I just hate to see opinion raised as fact
which may make people spend money on something extra when there is no difference
@Orcaman is correct in that a well balanced full spectrum is best
the problem is we havnt been able to replicate the sun correctly with a "Full Spectrum"
as the sun emmits Xray IR and massive amounts of Radio Waves outside the visible spectrum that we have not yet been able to recreate
the whole reason well grown Sun Buds blow anything out of the water when it comes to light