What kind of lights, walls, etc

A question from a fellow grower:

I’m setting up a mother room,3 to 4 plants,is t5 lights enough or should I get metal halide,also is 4x6 large enough.walls are made of plywood painted white

T5’s are plenty for a mother room. 4x4’ is plenty for 6 MOM’s to live comfortably. Too many can cause ventilation issues, which lead to disease and pests.

The idea is too keep the MOM’s as small as possible, 1-2 gallon posts. 6 liter is perfect. Too big of a pot cause more roots, and more roots mean larger foot print.