I used to run the Truck Lite LED headlights on my Hummer H1's before I got the Raptor, and they were awesome. The light output was great but the beam pattern was a little weird on low beam (they were the previous models that looked like a "bundle of flashlights" when they were on low beam). I would run LEDs on my Raptor in a heart beat. In the winter snow build up was not a problem; the outside of headlight never got hot enough to melt the snow and cause it to freeze on the lens so any snow you got while driving was just a thin dusting. Any build up you had from sitting for a while just fell off first bump you hit. All the head generated by the LEDs came off the back of the headlight where the heatsink was. Me personally I wish someone would develop a drop in LED bulb you could replace the HID bulb in projector housings with. You would need different electronics to replace the HID ballast and whatnot, but it would just be a simple bulb swap rather than a whole headlight housing replacement. Something like the LED emitter in the Light Cannons would be sweet...