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The Giro Helmet Vent Rear Bike Light fits into the rear vent of Giro's Register, Vasona, and Isode helmets, elevating your visibility from the rear.
2 CR 2032 Batteries Included
Steady – 5 lumen output / 7 hour runtime
Strobe – 5 lumen output / 12 hour runtime
Fits Giro Register, Vasona and Isode Helmets