So I just went out and bought sylvania silverstar's for my truck. I got 9006ST for the lows and 9005ST/2 for the highs. The stock highs were 9005 and lows were 9006. What does the ST and ST/2 mean? The low beem 9006ST says on the package "The look of HID" and the 9005ST just say "Whiter" "Plus Blance". Now are these the same style lights? I can hardly tell a difference between these and the stock bulbs. Did I do something wrong here? Do I need different bulb numbers? All of this is probably confusing to read but help is greatly appreciated. thanks.