Ah... The great light debate...
From what I hear...
CFL is fine for seedlings, and young clones, but not for Veg, or flower. Led is fine for seedlings, clones, and veg, but not for flowering.
MH, and HPS, are fine for Veg and Flower.
MH is best for Veg. Hps is best for flower...
There are tons who will disagree.
There are a lot of threads in the lighting section on this forum.
Check them out.