New Room so new setup needed

hi i am goin 2 start growin in a room now as i had great success in my cupboards, however in my cupboards i only had a few plants growing and they were sweet. now i hav this room i am thinking of jus usin the middle of the room and growin usin the Sea Of Green technique, i can easily get 1.5sqm even 2sqm i hav 2 400w HPS lights at hand, i am growing in canna and using all the right nutes, i hav ph testers and that ce tester or wotever it is lol, fans, the lot.

anyway i was finkin bout YEILD, i want more bud! would i get more by growin sea of green in this space or by jus fillin the space i have with bigger plants? will i need just the one light or both? i hav a brand new 600w HPS aswell in my mates garage do u fink that would be better?

thanks guys

plz guys i need sum help here

the 600 watt will give you 100% more light for 50% more energy, you can keep it within about 14" above your plants and it should cover the area you are talking about with 2Plants/sqft. Sorry it took longer than three minutes to get a response. Welcome to the forum.

ok thanks lol