The Cosmo 350 headlamp by Black Diamond features a compact design, high light output, and practical functions suitable for both everyday use and nighttime outdoor adventures. It delivers a maximum output of 350 lumens, while a sophisticated optical lens ensures high-quality, effective illumination.

Thanks to Dual-Fuel technology, it offers flexible power options. It comes with a rechargeable BD 1500 Li-ion battery, but can also be powered by three standard AAA batteries. When using the rechargeable battery, the unit supports USB-C charging and includes an integrated battery status indicator.

In addition to adjustable white light intensity, it features a red LED—with brightness control and a flashing mode—designed to help preserve night vision. A convenient "Mode Memory" function remembers your last brightness setting, so you don't have to readjust it every time you turn the headlamp on.

Its durable, IPX4-rated construction protects the headlamp against splashing water and rain. Weighing just 70 g, it is a practical companion for excursions, hiking, and everyday use.