Princeton Tec EOS Bike Light
"Princeton Tec EOS Bike Light takes self-contained battery lighting to the next level. The combination of a Maxbright LED and a Princeton Tec-designed collimator maximizes the beam by balancing long-throw with localized lighting. The self-contained unit feels virtually weightless on your helmet and makes the ultimate backup light for your 24 hour race. The EOS Bike is light enough to throw into your jersey pocket for a late afternoon ride ensuring you'll have enough light to get home. Its use of high-grade materials ensures durability and strong resistance to water, weather and impact. Includes helmet and handle bar attachments, plus headband so you can use your light around camp or at home."