Light And Motion Seca 1700 Headlight. The ultimate light for night riding, the Light and Motion Seca 1700 Headlight delivers an unparalleled level of quality, performance, and reliability. With a low profile mount, a Bi conic Reflector and an impressive 1700 lumens of light, the Seca 1700 is perfect for anyone who wants to get some extra hours of quality singletrack riding. You'll be amazed at the clean, even beam pattern with long range visibility, the quick recharge time, and the powerful, 3 cell Li Ion pack which delivers 1 hours of brilliant light on the High setting, and 5 hours on the Low setting. Mount it as a handlebar or Bicycle Helmet light and ride confidently into the night.