Hey Guys, I am looking for the best rail light (under cap light) that accepts a bi-pin LED. It needs to have plenty of room and a good reflector for the LED which is obviously fatter than a T-3 or T-4. I have looked at going with kichlers product for the rail light, but I have 40 going into masonry walls and replacing the whole fixture at the end of the fixture lifespan (1yr or up to 15yrs- who knows?!?) is not an option. So I need a good rail and bi-pin LED. Has anyone tried retrofit LEDs in Unique, CAST or Vistas rail lights? Who has the best fit? Which is the best LED lamp to install for this application. The full round barrel bi-pin or the One sided bi-pin? Thanks guys, Im trying to jump into LED retrofits a bit more.