lansingautorepair
New Member
MH bulbs do not produce any UVA/UVB spectrum. Only HPS bulbs do. Even my 1000w HPS dual archs don't produce enough to show an increase. As soon as you put them in a hood with glass between them you loose it all. Plus uva/uvb rays only penetrate a few inches away from the source. The new 10.0 reptisun bulbs are up to 18 inches deep. Thats what I use. I have 12 of them in my room! Im a white boy whos lookin pretty dark now! Everybody thinks Im tanning. Make sure you where I protection.
MH bulbs increase cbd's. HPS increase thc's along with the blue light spectrum and uva/uvb is a killer combo! My HGK is testing 28% and my chem dawg is testing 27%.
I posted a thread on this already if you want to search for it. You can also follow this link to the paper I published on the subject along with a bunch of research I did from other sources.
http://medicalmarijuanagrowing.blogspot.com/2013/02/uvb-uva-lighting-study-results.html
MH bulbs increase cbd's. HPS increase thc's along with the blue light spectrum and uva/uvb is a killer combo! My HGK is testing 28% and my chem dawg is testing 27%.
I posted a thread on this already if you want to search for it. You can also follow this link to the paper I published on the subject along with a bunch of research I did from other sources.
http://medicalmarijuanagrowing.blogspot.com/2013/02/uvb-uva-lighting-study-results.html