Black Diamond

Black Diamond Cosmo 300 Headlamp (Graphite)

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  • Black Diamond Cosmo 300 Headlamp Graphite
  • Black Diamond Cosmo 300 Headlamp Graphite
  • Black Diamond Cosmo 300 Headlamp Graphite
  • Black Diamond Cosmo 300 Headlamp Graphite


Black Diamond Cosmo 300 Headlamp (Graphite)

The Black Diamond Cosmo 300 Headlamp is compact and water-tight. It packs a whopping 300 lumens of power. The lightweight headlamp keeps the light on whatever you look at while walking, hiking or biking. Be sure to get everyone in your group one.


  • Updated optical efficiency with multifaceted optical lens not only emits brighter light up to 300 lumens on max setting, but also saves battery life
  • Updated user interface includes a second switch for lens settings, including proximity and distance modes, dimming, strobe, red night vision and a digital lock mode
  • Red night-vision LED has dimming and strobe modes that can be activated without circling back through the white modes
  • Digital lockout feature prevents accidental use when stored in a pack or pocket as a backup
  • Compact, low-profile ergonomic design with improved balance uses 3 AAA batteries (included)
  • IPX8 waterproof protection rated to operate at least 1.1 meters underwater for 30 minutes—perfect should you be caught in a downpour
  • If submerged, water may enter the battery compartment, but it will still operate; it should be completely dried out after use in wet conditions


  • Best Use: Camping
  • Bulb Type: LED
  • Bulb Detail: White/red LED
  • Red Light Mode: Yes
  • Beam Type: Flood/Spot
  • Max Light Output (Lumens): 300 lumens
  • Light Output: High: 300; low: 4 lumens
  • Max Beam Distance (m): 75 meters
  • Beam Distance: High: 75; low: 8 meters
  • Brightness Levels: Variable
  • Strobes: 2
  • Average Run Time: High: 4 hrs. 15 min.; low: 200 hrs.; reserve: 24 hrs.
  • Batteries: 3 AAA
  • Water-Resistance Rating: IPX8
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