Sylvania Halogen XtraVision- H6024XV.
For $14 a bulb/fixture at Auto Zone , this an excellant upgrade.
Esp. if you are not currently running halogen.
They advertise as " three times as bright "
( As what, I don't know ) They are much brighter than what I was running.
It's fast, easy and a perfect opportunity to polish those dirty chrome trim rings.