I heard UV is good for cannabis whilst flowering, so i was wondering will adding this light make any difference to quality of the bud? Halloween UV BlackLight Black Light Energy Saver Bulb on eBay (end time 21-Nov-09 14:08:34 GMT) I have a dr60 grow tent and a 250w SunMaster Dual Spectrum HPS
You want a UVB bulb that is for reptiles, you only run them for a few hours per day but they boost resin production. Good luck