Black Diamond Cosmo 300 Headlamp Rear Bike Light high mesh back and lightweight

high mesh back and lightweight construction

Weight supplement: pair | manufacturer's specs

-1-year manufacturer warranty against defects in materials or workmanship

reflective straps and fit system

Black Diamond Cosmo 300 Headlamp Rear Bike Light high mesh back and lightweightWith 300 lumens of power housed in a super compact, watertight body, the Cosmo 300 is perfect for urban adventures and overnighters in the woods. The Cosmo's new, compact body, is more ergonomic with a lower profile for improved balance, and the updated user interface includes a second switch for easy lens selection. In addition, the updated optical efficiency not only provides brighter light, but also saves battery life. And thanks to its watertight