For all your lighting needs, the Black Diamond Cosmo 350 Headlamp is the perfect companion for your next outdoor adventure.  Featuring an all-purpose beam and night vision functionality, this premium headlamp is ideal for camping, low-light runs, or whenever you need a hands-free lighting around the house. Furthermore,  this versatile headlamp offers runners Dual-Fuel capabilities that allow runners to recharge the Cosmo's BD 1500 Li-ion battery, or power the headlamp with three AAA Alkaline cells when a power source is not readily available.