Introducing Vibe a new concept in bike lightingVibe isn't just a light; it's an extension of the cycling lifestyleBio-renewable construction, auto-sensor technology, and innovative safety features bring a modernist re-categorization to the essential light categoryVibe 50 tail light brings powerful rear illumination in an ultra-compact, simple designThe new benchmark of protection and convenience, we invite you to Vibe with the evolution of smart safetyFeaturing:50 Lumen output certified to the FL-1 StandardSmart sensor technology senses motion and turns Vibe on when inserted into mountPulse mode is proven to be the most visible and effective rear light patternInnovative amber side lighting for increased visibility at intersectionsThe first bicycle light with an outer bio-renewable constructionUSB Mount Receptor allows light to be mounted and removed from bike in secondsWaterproof design for all conditions reliabilityCharges through integrated USB stickUltralight, compact design easily slips into a pocket when not in use (will only turn on when inserted into mount)Effective Pulse Mode With Long RuntimePulse: 12:00 / 50Designed and Assembled in CaliforniaBacked by Light & Motion's 2 Year Warranty