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Cosmo 350 Headlamp

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The Cosmo 350 is your new BFF 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 option to run the lamp on Black Diamond's rechargeable BD 1500 Li-ion battery and charger (purchased separately) or alkaline batteries if caught away from a power source for a long backpacking trip.


  • Dual-Fuel: Power with three AAA Alkaline cells (included) or the rechargeable Black Diamond 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 a 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

Staff Pick!

"These are great headlamps! I used them for wild cave guiding and they hold up phenomenally! The battery life is incredible; it always gave me several cave trips without having to change out batteries. And the versatility of using the AAA batteries or the D1500 rechargeable battery is fantastic!" says Seth

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