Black Diamond Cosmo Headlamp

All-around mountain adventurer.

Toss Black Diamond's compact Cosmo Headlamp in your ski pack, climbing pants pocket, or over your car's center mirror before heading out. This small headlamp gives 160 lumens of light and has six different lighting modes with various TriplePower and DoublePower LEDs. What this means for you is that you can always find the ideal amount of light whether you're finding the right skintrack or sneaking out of the tent for a wee.

  • Basic headlamp for late hikes and early tours
  • Multiple LEDs and settings provide right light
  • Tiltable housing lets you dial in perfect angle
  • Stormproof to withstand rain and snow
  • Single-button switch for easy adjustments
  • Red light is ideal for low light map reading
  • Reviews
  • Q & A

Well Built

  • Familiarity: I've used it several times

Super solid headlamp. Easy to use the different features and feels really solid.

Good light at a solid price

    BD comes through with a good light at a solid price. Bought these for basic camping, we're not thru hikers or anything. Works well and has held up through several trips. It has lots of light possibilities. The only problem I see is Switching from one lighting choice to another can a slightly confusing choice of buttons, until you get used to it.

    Rad for the Price!

    • Familiarity: I've used it several times

    I got one of these because they were inexpensive and its always nice to have an extra headlamp laying around. I was surprised with the brightness of this little guy. It really packs a punch for the size and price. Now this is not my go to if I am going backpacking or expecting to be moving a lot after the sun goes down. However this is a great option for car camping or having in the your pack for a spare if your buddy forgets theirs. Also a great option to have in the car for emergencies.

    Not Reliable

      This headlamp’s battery door does not stay closed. It swings open with almost no effort at all, and has done so several times at critical times (Nothing quite like looking for batteries as the sun is setting and a storm is blowing in...without a light...). There seems to be a clasp designed to keep the door in place; It isn’t broken, but about as useful as if it were.
      2nd Issue: If the batteries are even slightly low, the red light function turns off *automatically* after about 15 seconds. A very useful feature, unless of course, you are hanging off the side of a glacier, with no hands free and no way to turn it back on. When tested, the batteries aren’t even that low. My multimeter shows a continuous 1.2 V current, which means there is still about 30% of its lifetime left.
      Please make this right. I’ve been a longtime fan of BD, and talked nothing but praise. I appreciate your help in sorting this out.

      Great for night hikes and camping!

      • Familiarity: I've put it through the wringer

      I love this headlamp! It is super lightweight and the battery life lasts a very long time. I've used it on night hikes in the forest and camping. The red light is a must and all the lights have adjustable brightness. Whatever setting you turn the light off at is the setting that it will be at when you turn it on. The light also has a tilt so you can angle it down. The headlamp can be removed from the strap and the strap can easily be cleaned. Amazing price for how many features this little lamp has.

      No complaints

      • Familiarity: I've used it once or twice and have initial impressions

      This got me through a 3 night trip with no problems. I liked that there were different brightness settings, as well as a red light. I tended to use the lowest setting as an overhear light in my 2 person tent and the brighter ones for navigating paths in the campsite. Used the batteries that came with the headlamp without any issues.

      Perfect headlight for the price

      • Familiarity: I've used it several times

      Try to use the red light mode to longer the batteries life

      Love It!

      • Familiarity: I've used it several times

      I recently got into camping and wanted a cheap, but decent headlamp. This headlamp has several settings and works great. Great headlamp for the price!

      Lights up My life

      • Familiarity: I've put it through the wringer

      Headlamps are a must and this is a perfect little guy to take anywhere. I keep it mainly in my car and it is my go to for late night hikes to peaks with friends or when I go camping. Honestly I have never needed more then this little guy. There are other with more lumens but 160 Lumens honestly is bright enough for the causal use that I get out of it.

      Good lamp for the price!

        This lamp has lots of settings, most importantly, it has a red light. The lights dim and brighten, which is awesome.