Well I pulled the trigger on the c02 setup, and the chiller for my rdwc. Im still holding off on what lights to use. I could run 1 more time with the hps lights I guess. Im still in my same room so 6 foot ceilings.. so far now im gonna hold off...
Next up Psychotic kush and Evil Urkle
1k hps per 4x4 space is all you need
should be able to pull 2# per light
as long as you fill with 4x4 of canopy
also if running c02 you are gonna run higher temps
low 80's
remember VPD
2# per should be easily attainable
with my 350w led I pull anywhere between 60-90g per plant
so an average of 75g per plant and I can fit
8 75g plants in a 2x4 space
that is about 1.3# per 350w
52g per sqft
which I havnt done yet because I havent done a max plant monocrop run in here with this light yet
but it isnt the light
it is the technique that pushes the plants
you are gonna have to read the ppm constantly and make sure they are eating correctly as in giving them max nutrients judging by how much is consumed per day of ppms and adjusting to ride that line
JMO