The Reflex Auto will automatically turn on whenever both darkness and motion are detected by the motion and light optic sensors, providing the rider safety both while the light is turned on and while functioning solely as a reflector.5 LEDsGreater than 180 degree visibilityAutomatically turns on / off by light and motion sensorsEmits light for 50 seconds after the bike stopsBuilt-in reflectors that meets highest government standards (USA, Great Britain, Europe and Japan)OptiCube™ lens technologyAAA alkaline battery x 25 modesMode memory functionSP-5 bracket (ø21.5-31.8mm) and Rear rack bracket
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