Out of stock
Black Diamond

Black Diamond Cosmo 300 Headlamp · Octane

$29.95

Color: Octane
Currently out of stock
Ask Curated a question about this product:

With 300 lumens of power housed in a super compact, watertight body, the Cosmo 300 is perfect for urban adventures and overnighters in the woods. The Cosmo's new, compact body, is more ergonomic with a lower profile for improved balance, and the updated user interface includes a second switch for easy lens selection. In addition, the updated optical efficiency not only provides brighter light, but also saves battery life. And thanks to its watertight construction, the Cosmo keeps lighting the way whether you're forced to bike home in the rain, or you're hiking back to camp in an unexpected downpour.

Curated, Camping Expert
Maicen Stuart, Camping Expert
Alex K., Camping Expert
Have a question?
4.97 average rating

ColorOctane
Age GroupAdult
SizeOne size

Free shippingFree standard shipping for most items over $50 in the lower 48 states, $125 to ship orders to Alaska and Hawaii. Expedited delivery, if available, is an additional charge available at checkout. We do not ship internationally at this time.
Easy returnsWe offer a 30-day peace of mind returns on most items in new condition that are in their original packaging. Items purchased used are not eligible to be returned. Read our return policy for more detail

People love Curated Experts

Elizabeth is ost excellent!!
5 /5
Elizabeth helped me find all that I needed! She's listened to all of my needs and wants and was quick to find me some great deals for some quality gear! I couldn't have asked for better service!
Joshua Verified CustomerSep 20, 2024
GA, US
Purchased:
Mystery Ranch Terraframe 65L Backpack
Big Agnes Sidewinder Camp 35° Sleeping Bag
The North Face Stormbreak 2 Tent
Helped by:
Casually Professional
5 /5
Nicole exhibits superior customer service. She was very kind, responsive and supportive in a casual and professional manner. I would lean on her for any advice regarding camping or hiking. Very happy!
Todd M Verified CustomerFeb 13, 2024
MN, US
Purchased:
Big Agnes Copper Spur HV UL 3 Tent
Helped by:
Summer Camping Pro
5 /5
Came to the site again (with previous good experience from other departments) in need of a tent and footprint-- Elizabeth was great with recommendations and offering more options that stayed within the budget but weren't on the radar to begin with. That and helping with other recommendations generally for hiking/camping, she is greatly appreciated!
Skylar Verified CustomerJul 1, 2023
NV, US
Purchased:
Eureka Copper Canyon LX 4 Tent
Eureka Canyon Footprint · 4 Person
Helped by:
Elizabeth was the ultimate expert
5 /5
She not only answered my questions but also gave great advice. The article she sent had amazing tips and was easy to read. She was super friendly and everything she typed seem to have a smile attached. I have already recommended this site to a few people because of her.
Rachel Verified CustomerJun 29, 2023
MI, US
Purchased:
Gregory Amber 65L Backpack · Women's
Eureka Midori 1 Tent
Nemo Tempo 35  Sleeping Bag · Women's
Helped by:
Shopping made easy
5 /5
I'm scatter brained and overwhelmed. The help she provided meant a lot on a day like today, when I wanted to cry, and quit adulting. Thanks, Nicole. You're helping me achieve my life long dream.
Leah C Verified CustomerFeb 9, 2024
Purchased:
The North Face Stormbreak 2 Tent
Nemo Tempo 35  Sleeping Bag · Women's
LifeStraw Peak Series Collapsible Squeeze Water Bottle Filter System 650ml Medium Blue
Helped by:
Best Curator!
5 /5
Was looking at a camp stove and saw the Eureka Sprk+. Found a lower price from another site but Elizabeth price matched. She was very responsive and professional. I was able to get an awesome deal. Reach out to her if you’re shopping for something!!
Arnee O O Verified CustomerSep 9, 2023
UT, US
Purchased:
Eureka Sprk+ Camp Stove · Legion Blue
Helped by:
MY APPALACHIAN TRAIL CONSULTANT
5 /5
I am planning a 2024 thru hike on the Appalachian Trail (hiking my I own hike) to salute the the end of my 60s, and beginning of my 70s. Elizabeth is so helpful, supportive, offered some great advice, and made wonder recommendations. She's my five star personal shopper. 🌟🌟🌟🌟🌟
Charlotte Verified CustomerMay 30, 2023
Purchased:
MSR WindBurner Personal Stove System · Red
Nemo Forte 35 Sleeping Bag · Women's
Sawyer - Squeeze Water Filter
Helped by: