Is this adequate spacing?

I wanna grow 1 autoflowering, probably lowryder#2xak47 , but i want it to be like good... like a worthwhile grow

i have a box thats 18 inch High, 10.5 inches in length, 7 inches in width.

if i use 1 cfl and a rubbermaid container for pot, i estimate that, ill loose about 5 inches in high

if i use 60-90w cfl in there that should be a lot of light for small area....will it work and be worthwhile?
 
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