I finally found out what and how of Solar Control Glass. Dodge responed that Solar Control Glass keep the inside temp regulated. Example on a hot sunny day the black leather seats should'nt burn you. On a cold winter day as sun goes down the car should maintain it's warm interior longer. This is why I asked because I think other folks as I once thought that the glass did a photo-grey thing. Answer found now we all will know.
I just put on wind deflectors/ rain gutters they look nice and go on easy. They have the Dodge Logo and are dark enough to give the car nice graphics and block out bright sun at the top of the window.