As far as the cupboard goes, bigger is better. It really depends on what you are trying to accomplish. What kind of lights are you going to use? Is this a small compact fluorescent grow, or a HID? You should definitely start by clicking on GrowFAQ at the top of the page. There is plenty of information there for you. Do a little more research; and then come back with questions on any specifics that may elude you. It would take hours for someone to type up everything you need to know; and it is already in the FAQ anyway. Read it!
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