EOS BIKE - Black. EOS BIKE takes self-contained battery lighting to the next level. The combination of a Maxbright Rebel 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. It is drop proof and its use of high-grade materials ensures durability and strong resistance to water/weather/environmental conditions. Includes helmet, handle bar and headlamp attachments. SPECIFICATIONS. POWER80 Lumens. LAMP1 Maxbright LED. BURN TIME121 Hours. BATTERIES3 AAA Alkaline or Lithium. WEIGHT105 Grams.