BLACK DIAMOND Cosmo 350 Headlamp

The BLACK DIAMOND Cosmo 350 Headlamp is a reliable, compact companion for your adventures—around the house, on the trail, or at the campsite. This powerful headlamp delivers a maximum output of 350 lumens, ensuring bright illumination for any situation. Its multifaceted optical lens directs light precisely where you need it, with a beam reaching up to 64 meters at the highest setting.

Designed for maximum flexibility, the Cosmo 350 features a dual-fuel system: power it with three included AAA batteries or a rechargeable BD 1500 Li-ion battery (sold separately). The intuitive dual-button interface lets you quickly switch between white and red LED modes. The red night-vision setting preserves your night vision, making it ideal for reading or moving around camp after dark.

You’ll appreciate the adjustable tilt for directing the beam, a comfortable, padded headband, and settings that include high, medium, and low brightness, plus strobe and dimming modes for both white and red lights. The integrated battery meter keeps you informed about remaining power, and the digital lock-out feature prevents accidental activation while in storage.

Built to withstand the elements, the headlamp is IPX8 waterproof—operating even when submerged up to 1.1 meters for 30 minutes. After exposure to water, it’s recommended to thoroughly dry the battery compartment. With a lightweight design (just 2.8–2.9 ounces with batteries), the Cosmo 350 delivers dependable, all-purpose illumination for any adventure.