You might find some 5000k (assuming you are vegging) cheaper at Wally World, but Home Depot or Lowe's will have a better selection.
I don't think you will find 6500k's at Wally.
5000k's are fine for veg, I mixed with 2700k and my veg came out nice.
How large of space is also info needed along with how many plants, vegging, flowering, how you plan to set up, etc.
I vegged 1 plant under 98w in a 2x2 space, so I imagine if you were to have a 3x3 for 4 plants to veg 3 or 4 weeks, you might want 150 actual watts if not more.
Remember, CFL light doesn't travel far, so you want to keep your lights as close as possible and surround the plants.
You can't really overdo it with CFL's.
Here is how I'm flowering 1 plant, and I could still use more light.