• Online:
  • URL for this product:
  • From the U.S. and CanadaCall 1-800-426-4840
  • Mon. through Sun., 4 a.m. through 11 p.m. PT.
  • InternationalCall 1-253-891-2500
  • Mon. through Sun., 4 a.m. through 11 p.m. PT. English language only.

Black Diamond Cosmo LED Headlamp - 2012 Closeout

This item is currently sold out or unavailable online.

Or, may we suggest shopping for similar items:

Shop more HeadlampsShop more Black Diamond

This page is provided for reference to historical product information.

The Black Diamond Cosmo headlamp is a great choice for night hikes, route finding and general campsite use.

  • 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
  • Closeout


Item 849246


This item's hot - and it's only available online.

REI Membership

Black Diamond Cosmo LED Headlamp - 2012 Closeout Specs
Best use
High-output LED/2 LEDs
Flood / Spot
55 lumens
High: 55 / low: 4 lumens
33 meters
High: 33 / low: 18 meters
2 + dimmer
High: 175 / low: 250 hours
2.27 x 1.69 x 1.4 inches
3.2 ounces
Bulb type
Bulb detail
Red light mode
Beam type
Max light output (lumens)
Light output
Max beam distance (m)
Beam distance
Brightness levels
Average run time
Regulated output
Weight with batteries

Black Diamond Cosmo LED Headlamp - 2012 Closeout

Loading Ratings & Reviews...

Black Diamond Cosmo LED Headlamp - 2012 Closeoutis rated4.0out of5by1.
Rated4out of5byfromGreat light for most needs.The Black Diamond Cosmo is an easy to use and battery frugal light. The battery compartment access is a bit tricky. However once one has placed batteries in the light, it is easy to remember how to do this in future. The long battery life is nice. It's not waterproof so avid hikers/campers might want a water resistant or waterproof light.
Date published: 2013-07-23

Ask a question and have it answered by REI product experts and fellow outdoor enthusiasts. Need immediate assistance? Use Live Help.

Loading Questions & Answers...

How are we doing? Give us feedback on this page.

FREE SHIPPING With $50 minimum purchase

MEMBERS, EARN A $20 BONUS CARD! When you spend $100 April 14-29. Single-use bonus card redeemable May 2-12. Details
  • Join REI today!
  • REI Membership
  • REI member benefits include an annual refund (typically 10% on eligible purchases).
  • Join REI today!
  • Sign up for REI Gearmail®
  • and get 15% off selected items!
  • Store Locator
  • Locate an REI store near you.
  • Find a Store
© 2014 Recreational Equipment, Inc. All rights reserved. REI, the REI Tree and Mountain design, Novara, and
REI Adventures are trademarks of Recreational Equipment, Inc.

Find REI on: FacebookTwitterYouTubeFlickrMobile site