Quote Originally Posted by baldyhippy
Cheers guys for your time in replying.

Steve Im thinking more and more now about the little room Cheers bud....maybe in time Ill fill the other room I rekon I would need 1800wts for that space.

Plan is to extract into my attic (its above my grow area) via a cf & 10" fan,intake will be via an open window and probally a 6" fan for this..sound good?

Once again cheers folks.

Bh.
I'd recommend three 600W HPS, for best efficiency and coverage, or two 600W HPS and two 400W MH for broader spectrum, and even more lumens.
Venting upwards is usually best for heat extraction. :thumbsup:
Fan size depends on CFM (fan efficiency) and room size.
psteve Reviewed by psteve on . growrooms x 2 questions? Hi Folks. In a bit of a delema here,Ive just cropped 12 plants wich were from clone and vegged for 3 weeks potted up along the way finishing in 6.5 litre pots. Theses where in a room sized 6foot x 6foot x7foot high so 36 square feet,under 1 600hps and 1 400 hps & I only managed an oz per plant..roughly! Now after some maths I realise where I went wrong yield wise..not enough light covering the floor space :thumbsup: All Ive got are the combined 600hps and 400hps and without Rating: 5