Need help..hope im in right area!

I am new here guys so be easy with me, But I have noticed on some newer XJ,S tail lights, that some have been modified to where there is no amber turn, just red all the way down to back up light in lense. I am not sure if any of you have this setup but the two i seen approx two weeks ago on "car domain" had this done one was 98 OTHER WAS A 2000 XJ they just said "custom tailights" no way of contacting them so i thought i would see if any of you "slick cookies" know how this is done. I have checked the web on 'custom tailight" and nothing like this only "euro" design. It is a sweet setup, i think any way..... thanx guys

www.quadratec.com, they have LEDs of heavy steel. Theres alot of options, use the search feature for tail lights.