I was intrigued by this discussion of more THC in the tricome with UV-B radiation, so I did some more reading about some lighting options that have good UV-B output...

I was thinking: wouldn't it be nice if there was a cheap, easy HID solution to this puzzle? Well there is, Mercury Vapor!!! I have been using MV lights for veg, and in flowering I use MV and HPS. I was using them before as a cheap HID solution, now I keep using them for the UV-B.

I have notices heavy tricome development on my plants in their 3rd week of flowering, now I'm not positive that the MV is totally responsible for this, but reading this article: The Chemical Ecology of Cannabis I think it probably is.


Anyways enough rambling, I bought the MV lamp and ballast from wallmart for $25.44 and re-wired it have a remote ballast. It was very easy to do, far more simple than a HPS security light re-wiring.


Well here's a picture of the light from wallmart (175W) and a pic of one of my plants flowered under MV and HPS 3 1/2 weeks in flowering. (10x magnification)

The plant is not finished for a couple of weeks or so yet, but I'll let you know if it is any more potent than it's mother was

PS. If you decide to use one of these MV lamps in your growroom, wear some sunglasses, UV radiation is bad for the eyes.


L0rdsOth