I'd do a cooltube setup for lighting, 250w or 400w MH then 400w HPS for flowering. Reason is you don't have much height, so that way you can keep the light less than a foot away from the plants.

You will need at least a 200cfm fan, probably closer to 300.

3 or 4 plants sounds like a good number for that size box.
redtails Reviewed by redtails on . Grow Box Setup help needed please Hi All, I am new to the site and am in need of some advice.. ok well alot of advice. I am looking into starting my own personal little crop. i have a box that i want to use the size is 4 ft tall X 3 ft long X 2.5 ft wide. What would be the optimal amount of light needed and what size light i.e 250 W HPS. What would be best for controlling the heat in the box like would i use a standard fan as i have seen a few people doing this on different sites. How many plants would be best foir Rating: 5