Product DescriptionCygoLite Expilion 410 USB Rechargeable Headlight. 410 Lumens of ground-scorching LED light is at your command with the CygoLite Expilion 410. One-piece design is lighter and much more convenient than the divorced battery/lighthead systems of other manufacturers. Expilion's ability to swap battery sticks and it's compact size allow such painless versatility, it is the light of choice for most endurance racers.
Mtbr Bike Lights Shootout - over 50 bike lights reviewed, photographed and measured here.