# of plants with 16" MH/HPS

Just wondering if anyone could tell me how many plants would I be able to grow with a 16" horizontal from nblighting.com Also, as money isn't really an issue for this, does anyone think there is any other light source that is a better deal or has anyone been successful with nblighting?

watts determine # not size.r

400w. Should I go for higher?

yes.. if money is no object... get 1000 watt HPS...
and exhaust to pull heat away.. ideally get a cool tube

love