Black Diamond Cosmo 350 Headlamp

Black Diamond  |  Item: 71673.03
  • Image for Black Diamond Cosmo 350 Headlamp


  • Alternate product image 71673_03_DarkOlive_na_main_012122

    Dark Olive

  • Alternate product image 71673_03_Graphite_na_main_012122


  • Alternate product image 71673_03_Octane_na_main_012122


What Color do you need?
In Stock & Ready to Ship!

Your order ships for free!*

Product Details

For multi-use camping, power outages in the 'burbs and low-key adventures, the Black Diamond Cosmo 350 Headlamp delivers dependable light in a sleek, full-featured package. Plus, its dual-battery operation gives users a confident backup when power sources are scarce.
  • Duel-fuel technology for maximum flexibility to utilize either the rechargeable Lithium Ion battery or AAA batteries.
  • BD 1500 Lithium Ion Rechargeable sold separately; includes three AAAs.
  • Multifaceted optical lens design emits up to 350 lumens on high setting.
  • Settings include dimming, strobe, red night-vision and lock mode.
  • Red night vision has dimming and strobe modes and is quickly activated with dual-button interface.
  • Housing tilts so you can adjust the angle of the beam.
  • Adjustable headband for a secure fit and padding behind the housing for additional comfort.
  • Features a digital lock-out to ensure the headlamp doesn't drain in your pack plus an integrated battery meter that shows the percentage of power remaining.
  • The IPX8 waterproof housing protects against rain, splash, and immersion down to one meter (3.3 feet) for 30 minutes.

More Information


  • Headlamp
Lumens: 350
Burn Time on Low: 200 hours
Burn Time on High: 4.5 hours
Type of Battery:
  • 3 - AAA alkaline
  • 1 - Lithium rechargeable
Weight (with batteries): 2.9 oz (83 g)
Batteries Included: Yes
  • Rechargeable
  • Distance: up to 60 m
  • Red Night Vision, Dimming, Strobe Modes
  • IPX8 - Waterproof up to 1.1 meters for 30 mins
  • Adjustable headband
  • Lock-off feature
  • 3-year warranty