Quote Originally Posted by xxtestxx
Hey all quick question before i make my light purchse.

My cabnet is 5' high 4' long 1' wide.. so thats 4sq feet/20 cubic feet

i was going to go with a Mh/Hps combo light/balset just unsure on the wattage i should use im going for 3 plants.. should i 240/400 or 600 watt setup? And also for ventalation would a basic intake/exaust be good enuff>?

Thanks in advance!
1' wide is not near enough... you need at least 2 - 2 1/2 ft wide. I would look at building a fixture out of a couple of these Portfolio at Lowe's: 6-Light Chrome Traditional Vanity Fixture

Use 6500K 23W CFLs for veg, and 2700K 23W CFLs for flower. Makes a whole lot less heat, and produces some very nice results.