The Hori 1300 Pro Front Light is a front bike light with a Duo Optics System that pairs a wide low beam with a focused 1300 lumen high beam. A precise cut-off shapes the beam to light the road ahead, and a lock-out function holds the switch still while the light rides in a bag. What Our Gearhead(R) Experts Are Saying:"On descents, I stepped through the modes from the shifter buttons, so my hands stayed on the hoods. Shimano Di2 passed each press to the light."