I recently became the owner of a 400w MH and HPS light with a ballast and hood, however, after reading up on the effeiciency of these lights, it looks like I can't grow hardly anything with it. What size grow would you recommend for this setup?
3 foot by 3 foot. 4 plants, scrog em. lol you can do alot with a 400 watt HID, and awful lot of people here grow with less. Just did my last grow with a 400w HID, 5 plants, great white shark from greenhouse, link in the signature. What a negative start lol, remember it is a weed, now what u put in you'll ultimately get ou,t but this aint the movies so do with what ya got lol