Im currently growing a snowryder auto flower. Im using 2 6500k 23 [100w eq] and having great results. When veg'ing 6500k daylight bulbs and for flower you want to switch to the 2700k/red spectrum lights.
Ive also read that if you use 2 6500's and a 2700 for veg, then 2 2700's and 1 6500 for flowering, you will have good results.
Good luck!