Black Diamond Cosmo 350 Headlamp

Black Diamond
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4.72 (in)
4.72 (in)
7.09 (in)
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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.
  • Distance: up to 60 m


  • Category: 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