for vegetation i just put my shit in the window or in my room and leave the windows open...no one can see that shit. Light is most important in the vegetative stage because the plant is developing, so naturally, sunlight is going to be the best source. Cannabis plants can actually flower when there is no light, but they won't be that great. I think you should re think your lighting for the vegetative stage but for flowering the set up you mentioned sounds fine as long as you regulate it to 12/12