Which light for my size closet

I made a mistake when I last asked this question...I have a flowering room that is 3 feet wide 6 1/4 feet long and 8 feet high. I wanted to know if a 400w or a 600w hps would be more efficient for this space? I wanted to run a 2 week perpetual SOG harvest system, would I be able to with this space and only one light aiming to harvest 4-8 plants every 2 weeks?

Don't think you can fit 24-48 plants in there
And you would need a separate area for veg/cloning

yea I have a seperate area for mothers/cloning. with my space limitations which light and how many plants would give me the best results? or would I be better off doing a 2 month perpetual grow with say 8 or however many large plants can fit? based on the time of each system and yield, which would be more productive for my closet?

i think oyu can fit a good 18 plants in there man packed in from wall to wall.like 3 rows of 6.you know 3x6 ft equals 3x6 plants. i would also get a 600W at least and if money doesnt matter get like 2 250w or 2 400w. i like the idea of 2 lights better as it will fully cover your area. a 400 is usually a 3x3 and 600 is 4x4 and a 100 5x5 or 6x6.and thats the max.so maybe 2 400 but 2 250 will be alright and then you can either upgrade in the future or just add some other lights but mainly upgrade.and if you want 2 diff harvests jsut slit it down the middle under each seperate light ya know in the same room and youll harvest every month ya know.and can adjust the lights as needed. as long as you have another clone/mother veg room as you said you do but that can handle the op.
overall i think you should get the 2 400w so you never have to upgrade ya know man.