Lighting

I've been asking questions about Aerogardens and CFL's. Well I guess I finally figured out what I am going to use. Let me tell you about my grow room I have an empty room that's about 11x13. I want to grow about 5 plants each time. I am going to start out with some auto AK47 and auto White Russian. I am going to use CFL's for the veg which is the first 2 weeks and HPS for the last 6-7 weeks or maybe just HPS for the whole grow. Now my question is what wattage and how many HPS would I need for my 5 plants? Does anyone know the yield of these 2 strains?

I use a 600w HPS all the way thru. On my first grow of autos I used a cfl for the first two weeks and my plants ended up way to short.