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Cosmo Headlamp

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Updated with 200 lumens of light and a modern waterproof housing, the Cosmo is sleek, super-bright and ready for any mountain adventure you can throw at it. READ MORE
Item# BD620635SLWTALL1


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Updated with 200 lumens of light and a modern waterproof housing, the Cosmo is sleek, super-bright and ready for any mountain adventure you can throw at it. Learn More


Featuring a redesigned waterproof housing and 200 lumens of power, the Black Diamond Cosmo Headlamp is perfect for any adventure where daylight is in short supply. From dinner in camp to alpine starts and late-night hikes, the Cosmo features six different lighting modes for fully custom illumination. And thanks to its fully waterproof construction, the Cosmo keeps lighting the way through sprinkles, splashes and full-on storms.

  • One TriplePower LED and one DoublePower white LED emit 200 lumens
  • Red night vision has dimming and strobe modes and activates without cycling through the white mode
  • Sleek, low-profile design uses three AAA batteries
  • Settings include proximity and distance modes, dimming, strobe, red night-vision and lock mode
  • IPX8: Waterproof-Tested to operate up to 1.1 meters underwater for 30 minutes. If submerged, water may enter the battery compartment and it will still operate, and it should be dried out completely afterwards.

Tech Specs

Lumens :   200
Weight With Batteries :   86 g (2.9 oz)
Max Distances :   [High] 65 m
[Low] 12 m
Max Burn Time :   [High] 45 H (est.)
[Low] 180 H (est.)
IPX Rating :   IPX8
LED Type :   1 TriplePower, 1 DoublePower, 1 SinglePower
Batteries :   3 AAA (included)

Headlamp Range

Cosmo Headlamp is rated 4.1 out of 5 by 18.
Rated 5 out of 5 by from Best headlamp! Hands down! I have a expensive surefire headlamp and a stream light headlamp, and they do not even come close to this light! It's light on my head, doesn't wobble or wiggle even if jogging! And it's BRIGHT!! Also it is dimmable and has a smaller led that I can use that doesn't blind the people around me if I'm with a group or friend! I'm about to order two more now!!!!!!
Date published: 2017-03-11
Rated 5 out of 5 by from Military use. I'm in the U.S. Army I spent 21 day out in the field having this headlamp on my person 24/7. It got bumped around covered in dust and dirt. Spent 2 full days getting rained on and kept on working I used it every night on the bright red night vision mode this headlamp out does any others I have used very solid and reliable product.
Date published: 2017-06-05
Rated 1 out of 5 by from Good light features but not waterproof at all It's useless when getting wet....I don't know how they can claim IPX8 waterproofing but I had in the rain and briefly in a outdoor pool. Battery compartment door has no seal so water finds its way freely and caused all sorts of problems. Bought this lamp for canyoning at Fora-corda (they offered a few types for canyoning, of which this was one) but I'm happy I never ended up in a cave(pool) where I would have needed it. Light bundle functionality is great, build quality not up to standard
Date published: 2017-06-13
Rated 5 out of 5 by from Great headlamp I bought this lamp in a shop because the seller advised me. I´m newbie with all these tools for hiking, etc.. I do have experience with other headlamp and from my inexpert experience I like it. It does not hurt and it is pretty confortable. And I was amazed by how far I coul see (told you..I´m a newbie.. I get excited easily haha). I have to add, I used it a lot while sailing.. and I had no problem with it being wet (for now!). Fact is, I have some friends that are expert and they also liked it.. so I am proud of my purchase. hihi This is my first experience with BD.. and I would buy it again if needed. :D
Date published: 2018-03-05
Rated 5 out of 5 by from Great headlamp at a great price Awesome little headlamp - my husband uses the revolt as he needs the extra light sailing st night, but the cosmo is perfect for getting into dark spaces on the boat and love the red light feature.
Date published: 2017-10-20
Rated 4 out of 5 by from Very good headlamp with very tight latch Battery door latch is so tight, you're begging for a screwdriver to help open it, then worry about breaking the plastic. Same latch on Astro, but it's too easy to open on that - plastic molding issue. Gotta sand it down. Brightness and reach is fine on max. The two white bulbs do have a slightly noticeable projected offset, but generally fine for all uses. A slightly warmer color temperature than the Astro. Easily puts out enough light to light a bedroom just enough to read print. Red isn't as bright as on some other headlamps. No electronics buzz that is present on the Astro. Good tilt range. Same strap design as Astro, so don't expect the length to stay the same after removing the lamp from your head - adjust often before wear.
Date published: 2017-12-13
Rated 5 out of 5 by from Great Lamp, nice, light and bright I use this regularly for running in the early morning 3-5 days a week. I also used the Cosmo during the Blue Ridge Relay. The light was powerful to cut through the dark and misty fog both at 11 PM and 4 AM legs. It's an item that just works and has lots of easy options.
Date published: 2017-09-17
Rated 2 out of 5 by from Great Features Great little headlamp, love the features. Bought this in the fall of 2016, worked great so I tossed the package and receipt - mistake! I recently changed the batteries, now the case will not stay latched thus no longer waterproof.
Date published: 2017-06-01
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