2 sq ft per plant is about right. I flower 3 (or 4 small) plants in a 5.5' x 30" closet.



I used a 600w HPS in the same closet with a vented hood in addition to venting the grow closet. This will give you around 70+ watts psf. The top range of lighting without using co2. I'm 100% fluoro now.


The use of Metal Halide to augment light in flower will supply the UV(B) light that increases trichome production. (think himalayas and tropics).

The red spectrum of the HPS helps make dense buds.