Light & Motion Solite 150 Headlamp

It's pricey, but because it's super-bright (150 lumens), with orange side lamps that ensure you're seen peripherally at intersections—and because it can be strapped to just about anything (a ski or bike helmet or handlebars) or used as a flashlight—it might be the only headlamp you need to own.
TAGS: multi-use, helmet-compatible