Keeping it simple by providing the features you need and nothing extra the Cosmo 350 Headlamp has a max 350 lumen output, red night vision, and runs on batteries or the BD 1500 rechargeable Li-ion battery.
Patented digital lock feature safeguards against accidental use when stored in a pack or pocket.
Providing maximum flexibility, Dual Fuel technology headlamps ... Providing maximum flexibility, Dual Fuel technology headlamps utilize either Black Diamond rechargeable Li-ion battery packs (sold separately) or Alkaline cells. Learn More
We trust what we make because we use what we make. We trust what we make because we use what we make. All Black Diamond lighting products are covered by a three year warranty policy. Learn More
Combining six decades of innovation with Black Diamond’s unique company culture of using and testing our products in the mountains. Our experience outdoors is what inspires and informs our engineering in the lab, and in turn the engineering leads to new gear and apparel that improve the mountain experience.
Overall rating: 4.6883116 / 5 from 77 reviews.
The Cosmo 350 Headlamp is praised for its bright and compact design, making it suitable for multi-use camping, around the house, and outdoor adventures. Customers appreciate its ease of operation and the convenience of its rechargeable battery feature.
Review topics: ["weight","improvement","straps","issues","quality","feel","design","price","set","works","pack","light","headlamp","battery","cosmo","level","lamp","features","adjustment","brightness","option","version","beam","button"].
"Bought this during a long day in Moab for some night photography at Arches NP. I had forgot my old headlamp at home 2 hours away. But fortunately a store in Moab carried and recommended these. This os my first Black Diamond product. I am very pleased with the feature set and build quality. The white lamp, even at lower output levels is bright enough for walking on rough terrain in the dark, even for a fat old guy who wears glasses. The red lamp, and the ability to access it without cycling through the white light makes this headlamp the perfect "polite" illumination where you are sharing space with other photographers after dark. The red lamp was a little dim for moving around rough, unfamiliar terrain. But for flat, even areas it is enough. Overall it's a great tool. I liked it so much I ordered 2 more the next day to keep in my gear bags so I won't forget them next time. I looked at some of the more feature rich lamps but this model fit my use case perfectly."
"It says dual fuel. I assumed (I know…) it was rechargeable. It is —if you buy the rechargeable battery sold separately from Black Diamond. So, not USB rechargeable. Not as environmentally friendly as I thought. Still it’s easy to use and will be great for camping with my dog."
"Used for camping, rock climbing and backcountry skiing. Light weigh and solid. No issues."
"This is a spare that I keep in the truck in case of emergency. It was nice and bright when I tested it out."
"The headlamp is bright, functional, and stays alive for a while. I've had it at max brightness for over an hour. However, the controls are strange. It will turn on to whatever color/level you left it on. So the "buttons" switch depending on your settings beforehand."
"Needed a lamp for local night excursions to walk the dog and find what she leaves behind. This lamp works perfectly. Red light is perfect for most tasks and especially handy when anyone walks with me so they aren’t blinded by my effervescence. White light is really only needed for the deep search and rescue. Easy to operate and is holding its battery life nicely."
"I have a BD headlight that directly charges via Micro USB and I LOVE it. This one comes with Duracell batteries and you can purchase a lithium battery that can be charged but this is buried in the description. This was not evident while purchasing. Now I have another headlight that needs batteries unless i want to purchase the lithium battery that it should come with and have the option to use batteries."
"I love this."
"Awesome headlamp just to tuck away in a bag and was a lot brighter than other lamps this size! great light adjustability and super comfy."
"I bought this as a gift for my husband who often tries to hold/position a flashlight while working on projects in our house. Very, very bright. He is beyond happy with it!"
HOW TO: Operate Your Black Diamond Headlamp
