http://www.petzl.com/us/outdoor/headlamps/signal-and-elite/elite

I have a couple of these and if I were putting together a car kit, this multi-purpose head light would be on top of the list. I carry one set of extra batts, so I would have at least 70 hours of use. There is a flasher mode in both red and clear. Just a great little light for any kit and especially the vehicle kit.