Plants grow just fine with compact fluorescent lights. Unless you want to get into hydroponic growing and get the whole setup, I'd stick with what you have

Thanks "dowlinggram" for reply. It's an helpful reply and it can be applied on my growing method.

Hi I recently was looking at different lights to purchase also. I was given the advice to buy 6500k compact fluorescent for growing. And 2700k for flowering. I purchased these from eBay and my plants have started growing like crazzy! Good luck hope this helps!