of course an hps is better but you cant fit an hps in a pc grow box. cfls are fine. like said befor, the more the better. i have autoflowers in my box right now and i use 3 26w 64k and 5 23w 27k for 3 plants. i will probly use 1 or 2 64k during flowering and the rest 27k. i might even add...