Originally Posted by operator
<no carrier>
Right now it's looking like 12v MR11 bulbs @ 10w/15w being overvolted with a 14.2/13.2V Nimh D battery packs.
Let me know what you end up doing. I'm going to put together a system for the winter/night off road riding. Most likely a single helment mount, 12V. ~20W. The bulbs are cheap enough so that I may overvolt lots and just carry a spare bulb.