I'm limited to 2ft x 2ft x3 ft.
For flowering , I use two 4ft fluoros w/ 4 tubes in each for the sides. Above I use a combo of 250w MH & 100w HPS.
The mothers sit in a p2 & shelf system lit by 66 wattts of fluoros.
I use only recycled fishtank water, the containers for flower are 1 ltr water bottles.
The mothers stay under 22 hrs & flower under 12/12.
I prefer to mix my own soil mediums.
Cooling/ exhaust is done by Holmes window fans w/ attached ducts 120cfm.
So far odor has not been a problem, (other life forms inhabit the grow room).