Mountain Equipment Company

Black Diamond Cosmo 300 Headlamp


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Black Diamond bumped up the lumens on the streamlined Cosmo to a darkness defying 300! The mode button cycles through smooth dimming, flood and spot lighting, and a red night light.

  • Flood and spot light modes lighting for near or far
  • Smooth dimming feature dials in perfect brightness
  • Strobe mode helps keep you seen
  • Red light modes help preserve night vision, great on early morning starts
  • Intuitive 2-button controls for flipping between modes
  • IPX8 waterproofing protects up to 1m of submersion for up to 30 minutes. Note: If your light does get seriously wet, be sure to dry it out completely before storing it
  • Lock-out mode prevents accidental activation

Tech specs

Weight83g (Aqua)
83g (Graphite)
83g (Octane)
Ideal for
  • Camping and hiking
5 modes
Beam distance - low8m
Beam distance - high74m
Light source
  • 2 LEDs
  • 1 red LED
Burn time - low200 h
Burn time - high6.5 h
300 lumens
  • Wide
  • Spot
Flash modeYes
Red light modeYes
Batteries3 AAA (included)
Made inChina

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4 out of 5 stars with 17 reviews for Black Diamond Cosmo 300 Headlamp

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