Most dispensaries probably already have this down, so this is more for the smaller places. If you are growing on a dispensary/caregiver level, you need to grow dispensary grade. Fluorescent is ok for seedlings and clones, but if you are trying to grow the BEST bud, you need to veg with a Metal Halide once your plants are out of your "clone room/area", that way they will grow the fastest and healthiest. Then, when flower time comes, you NEED a High Pressure Sodium, that is the ONLY way to go. On top of that you need a perpetual garden, meaning 1 room metal halide, on an 18hr on/6hr off schedule, and another room on a 12hr on/12hr off schedule, so that you are harvesting EVERY two months, with plenty of time to veg your plants out huge. Other than that you just need nutrients and good soil and you've got the ingredients for some dispensary grade bud... And if you want to grow that "top shelf" quality, you have to learn some stress techniques, which will be documented here when I finish my grow, and when I start my next grow, as well as written down over the next few weeks on this thread.