Savvy adventurers like you know that dependable illumination is key after dusk, in the backcountry or anywhere with lower light. Count on the Black Diamond Cosmo 250 Headlamp for to light the way, capable of up to 250 lumens of power on its maximum setting. The updated user interface includes a second switch for easy-peasy lens selection. The Cosmo 250's low-profile compact design makes for comfortable wear, while its watertight construction means you won't lose the light in a sudden downpour.