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Cosmo 350 Headlamp




Color: Graphite

Color Options
  • Free economy shipping for orders over $99+

For multi-use camping, around the house, and outdoor adventures that require a simple light with both an all-purpose beam as well as night vision. This user has the need to run the lamp on alkaline batteries if caught away from a power source for a long backpacking trip.

Product Features

  • Dual-Fuel: Power with three AAA Alkaline cells (included) or the rechargeable BD 1500 Li-ion battery and charger (purchased separately) for maximum flexibility
  • 350 Lumen max output
  • Red LED night vision has dimming and strobe modes and is quickly activated with dual-button interface
  • Settings include dimming, strobe, red night-vision and lock mode
  • Multifaceted optical lens design
  • IPX8: Waterproof-Tested to operate at least 1.1 meters underwater for 30 minutes. If submerged, water may enter the battery compartment and it will still operate; it should be completely dried out after use in wet conditions
  • Integrated battery meter display shows % of power remaining
  • Digital lock mode feature safeguards against accidental use when stored in a pack or pocket


Dual Fuel Rechargeable

With our Dual Fuel technology, the user has maximum flexibility to utilize either Black Diamond rechargeable Li-ion battery packs (sold separately) or Alkaline cells.

PowerTap Technology

Instant transitioning from any setting to full power light output with the tap of a finger.

Digital Lock

Patented digital lock feature safeguards against accidental use when stored in a pack or pocket.

3 Year Warranty

We trust what we make because we use what we make. All Black Diamond lighting products are covered by a three year warranty policy.

Max Distance
Weight Without Batteries
IPX Rating
Max Burntime
[High] 64 m
[Medium] 45 m
[Low] 10 m
46 g[AAA] 79 g
[BD1500] 73.5 g
3x AAA (included)
BD 1500 Battery
IPX8[High] 350
[Medium] 175
[Low] 6
[High] 3/5 hrs
[Medium] 6/10 hrs
[Low] 200/225 hrs
AAA/BD 1500 Battery


WARNING: This product can expose you to chemicals including Bisphenol A (BPA), and Nickel, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to