The Cosmo 300 Headlamp by Black Diamond has a new, super compact body. It is more ergonomic with a lower profile for improved balance, and the updated user interface includes a second switch for easy lens selection. The 300 lumens of power housed in a  watertight body, the Cosmo 300 is perfect for any adventures and overnight outings in the bush. In addition, the updated optical efficiency not only provides brighter light, but also saves battery life. And thanks to its watertight construction, the Cosmo keeps lighting the way whether you're need to hike in the rain, or walking back or around camp in a thunderstorm. Cosmo 300 Headlamp