I'm a novice myself, just to let you know. My info may not be 100% perfect, but I do feel like I'm geting a feel for this

Personally, I'm using CFLs for my grow, and I'm happy with them, but I have one of these for my veging plants and a 2700k (warm/daylight) for flower. Plus, I have each plant surrounded by extra 26w CFLs, not to mention I currently have only a single plant under each.

The lights you have a link to will work, but I would say to have any kind of success, IE harvested wieght, you will want at the very least 4 bulbs for each plant, but really for your 14" plants you should have more like 8 of those. If you arrange them right with 4 on one side for one plant, 4 in the middle to share between the two plants, and another 4 on the far side you will be happy.

As for them maturing, it should be happening any day now. I think most plants are supposed to mature between 2 and 3 months.

Hope that helped, and happy growing.