thanks drsuess. that is what i was thinking but could i use smaler pots if i use nuttes

iv been doing research on lighting and my mate said that my 200w cfl grow light gives off mor light than a 4x fluoro tube light. and that my light can penatrate up to 10" and the tubes only 4" is this true or do i tell him hes talking crap. i think hes full off crap my self so can any 1 help im getting confused like mad.