well since your vegging, and should prob flower soon, i would get like 2 Day Light Bulbs (blue spectrum) to vegg with, that will be along with thr AG light, then maybe 4 Soft White bulbs (red Spectrum) when you flower, that should be sufficient for one plant, refer bac to that link i posted, should make a lil more sense. I would try and get those clamp fixtures
this is what i have, its like a outdoor thing too you could say, its a light you can hang on anywhere
with the "Y" sockets you would just need 2 of those, that way when your vegging now, you can use those reflectors for the 2 extra lights, then when you flower take them off and put 2 CFL on one clamp