Grow room setup!!

i would say 600w, would be good for 4 platns

I'd say the 400.....

the 400 defo. if you use the 1000 you will be wasting light and will struggle with the heat. if you can handle the heat the a 600 would be best but 400 will work just fine

using a 400 i would have 9 plants in there, grow them to 1 ft flower them and they will get to around 2 feet when finished and give you a couple of ounces each. thats a very short veg time with a good return on 400watts. you will have plenty of head room to dissipate the heat so you will get less of a temperature worry
if you were to have 2-3 plants you will have to veg them for longer to fill the space and without pruning they will be too tall by the time they have filled the width, pruning adding to the veg time also

I would say 1000w you will yield more!!!!!veg those fuckers and make them huge..

you may yeild more with a 1000w but it wont be as cost effective as it uses so much more electric and to make proper use of the intensity you should grow the plants much bigger therefore wasting time in the veg stage. if you had say a 4x4 or room then maybe i may favour the 1000w if you had a 5x5 then id defo favour the 1000w

id say that you should go with a 600

i dont think it matters, doesnt look like hes coming back