how many cfl bulbs for 6 autos

guys i need help i am going to grow 6 sweet tooth autos 2ft 7in in length/ 2ft in width and 6ft high is my cabinet i am going to be using 42 watt cfl bulbs how many do i need to use i have read many forums but never got a str8 answer on how many bulbs !!! with my space how many bulbs? i no that it should be 2-4 for a plant but in a cabinet im sure its less bulbs could i do 8 bulbs and be good or no? pleas help???????????????????????????????????

50 watts PER plant.

42 watt cfls are equivalent to 150 watts ? im just a little confused cause people say 150 watts a plant so would 8 cfl bulbs be good or more?

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Well in my cab im using 150 watt bulbs that are 400 watt equivalent and i have 4 of them plus 4 42 watts. and that for 4 plants in a 2 x 2 room, for flowering

thats for autos?

no but autoflower or not isnt going to change the amount of light needed. The more light you use the denser and better the buds with turn out. If you dont have enough light you will get fluffy soft buds because the light couldnt penetrate enough to create growth.