Alright so i am setting up a grow room for vegatables and such. I was wondering will 6 150w cfl lights grow tomatoes peppers squash and such? Also what i was wondering can you "top a tomoto plant? or do you just let them grow. help would be apreciated

That should be enough lights, but remember more is always better. I believe the sun itself puts out about 10,000 lumens per sq. ft. - I could be wrong. I would just let the tomatoe plant grow.