Are you look for an HID or a Halogen? On the Nite Riders, there is a mount for the side of your helmet, near the mouthpiece. The lights don't weigh hardly anything. Then there is a cable that connects to a small battery pack that you can put in your tool pack. They last about 4 hours fully charged.
Here's the link to our site. Look at Nite Rider & Trail Tech: http://blaisracingservices.com/lighting/cat_98.html