Yes, I always heard the blue light was much better for veg., and red for bud. Red will stretch the plants in the veg stage, something you don't want, but good for making the flowers grow well. I never had any grow make it to the flower stage. I'd get paranoid about the neighbors when the plants got really fragrant. It was ok as I had an exhaust fan going, pulling it outside, but then the neighbors decided to start doing some exterior house repair right outside my window, so I pulled them. Now that Michigan has emerged from the dark ages and a person can get licensed to grow for certified patients, that's good news for the sick people who really need it and don't have to be at the mercy of the pharmaceutical companies for the outrageous prices they get for their medicines.

Mike