The XP version works w/ all lights. LED or filiment.rogersc50 said:One thing I did to be noticed by drivers behind me is install a brake light modulator. The one I chose is called Back Off and is a simple 2 wire hookup under the seat. It flashes the brake light 3 times and then on for 3 seconds and then repeats the pattern for as long as you have the brakes applied. I have seen it for about $29.00 plus shipping. It is a nice safety feature. It splices into the brake light power wire. Here is one vendor that sells them
http://www.phatperformanceparts.com/SearchResults.asp?Search=Back+Off&Search.x=19&Search.y=16