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  • 1 central DoublePower LED throws light a maximum distance of 33m; 2 proximity LEDs throw light 6m for activities around camp
  • High-quality lens tunes the light output and shape of the beam to make the Cosmo ideal for general outdoor use
  • Use the on/off button to navigate from the bright DoublePower LED, to the 2 proximity LEDs and then to the strobe function
  • Fine-tune your lighting needs with the dimming switch—simply hold down the on/off button to activate dimmer
  • Streamlined design sets the beam at an efficient illumination angle; ratcheting swivel head aims light where you need it
  • Compact design fits securely around the head with an adjustable elastic band that won't pull hair
  • 3 AAA batteries (included) provide up to 250 hrs. of use on low and 50 hrs. on high; battery compartment is just behind LEDs for a compact design


View all Black Diamond LED Headlamps

REI membership


Best Use Camping
Bulb Type LED
Bulb Detail High-output LED/2 LEDs
Beam Type Flood, Spot
Max Light Output (Lumens) 55 lumens
Light Output High: 55 / low: 4 lumens
Max Beam Distance (m) 33 meters
Beam Distance High: 33 / low: 18 meters
Brightness Levels 2 + dimmer
Strobes 1
Average Run Time High: 175 / low: 250 hours
Rechargeable No
Batteries 3 AAA
Dimensions 2.27 x 1.69 x 1.4 inches
Weight With Batteries 3.2 ounces
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