Woody has one. Makes lots of light up close, but not much far away. Here's a couple of pics from the muster that will show you.
This is Woody's D40 with just the light bar on, from a distance to the side. My camera flash was active, so the camera (Canon EOS 500D) did compensate by dimming the background. The light bar is brighter than it appears here, but you'll see that in the last shot.
This is a shot of the light output by Woody's truck. The foreground light is almost ALL from the lightbar and it does a spectacular job of lighting things up in front of the car, but not for a great distance.
(yes, Sparra, I made sure I got your good side).
Lastly, here's Woody's D40 with everything lit up. I think it's Kyle's D40 beside his.
To be fair, I was standing directly in front of Woody's car, so Kyle's lights were aimed past my left. Kyle's spotlights were super bright and I'm sure the trees (middle picture) were smoking a bit after he turned his lights off.
Anyway, the LED lights don't seem to have much range. Up close they are bloody fantastic. Depends what you need the lights for, I guess!