Has anyone done any experimenting with the differences between flowering with a hps vs. a mh. it is my understanding that while a hps will produce more weight to the harvest, the mh produces more uv meaning the plant will have a larger sunscreen production (trichomes!) is there any validity to this or just another rumor...??
MH Have more UVB radiation thus More resin. thats why i use 1000W HPS and 400W MH for enhanced spectrums. But only in the last 4 weeks i use MH and the buds harden up so much and pack on so much resin.