I use 24/0 for the first 2 weeks ONLY. Then 18/6 until flower because the plants need to rest. It does not "rob" them of anything infact they will grow even more.
Either way, you're waiting your time. You barely have the resourses available to succesfully veg it. You're gonna be extremely disappointed with the bud without at least a 250w HPS.
Ballast and hood $240
http://www.amazon.com/Watt-Xtrasun-Digital-Light-System/dp/B001DYQGZA
Bulb $20
http://www.growlightexpress.com/hps-mh-bulbs-7/high-pressure-sodium-29/ultrasun-250-hps-lamp-935.html
Don't buy it unless you can spend some $ on nutrients too. One wont do you any good without the other. Otherwise you're better off just buying good shit from your local dealer at $50 a bag.
Again, 18hr of light. Oh and where did you get the seed? If it's bagseed (no matter how good) then I wouldn't waiste any money on a hps or nutes. Kill it and go buy a bag of Kush