Indoor Grow Box Set-up

[Malsor]

You could do the 4x4 with a 400w easily. In a vertical setup that would only mean having to push through 2 feet in any direction, well more than enough penetration distance for a 400w.

I was thinking of putting 12 plants in a 4x4, growing 400w MH then switching to HPS the last 2 weeks of flower. I was also looking at feminized Big Bang seeds. I read people growing 4+ oz per plant!