Paint Question

Planning on painting my grow closet and want to make sure i am going to get the right paint.

http://www.homedepot.com/Whites/Paint-Exterior-Paint-Stain-Paint/h_d1/N-5yc1vZbbblZ5yyfeZ1z140hb/R-100675003/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053

Is that good enough flat paint?

Thanks In advance

Behr Premium Ultra White is supposed to be pretty good as I understand it since "white" is sort of subjective in terms of actual color. Do a quick search on the forums, I've seen some fairly in-depth discussions on here.