Black Diamond Cosmo 350-R Headlamp

Weighs 74g (with batteries)
Code: SS22931
  • £41.99
  • (FREE UK & EU Delivery)
  • RRP £44.99
+ In Stock Now   |   Usually dispatched within 24 hours

The Black Diamond Cosmo 350-R is a compact all rounder. Compatabile with 1500 mAh Li-Ion battery that cranks out a 350-lumen max output. 

Black Diamond says: 

For multi-use camping, around the house, and outdoor adventures that require a simple light with both an all-purpose beam as well as night vision. This user has access to a power source and values the ability to go out on their adventures with a fully charged battery.

The Black Diamond Cosmo 350-R is a compact all rounder that is handy to have whatever the situation, either out in the wilderness or for your needs around the house.

Compatible with 1500 mAh Li-Ion battery that cranks out a 350-lumen max output, a micro charge port meaning that it can be recharged with the charge pack at home or on the go with a power bank, a lock mode to prevent accidental waste of light, integrated % battery meter to show when you are running low and red night vision mode when the situation calls for a gentler light.

While not completely waterproof it will withstand heavy rain and even being submerged for a short time, as long as the batteries is dried out afterwards, meaning that you don't have to worry about it failing you on a wet day in the hills. 

- Reviewed by BasecampGear

  • Rechargeable: Powered with integrated 1500 mAh Li-ion battery with microUSB charge port
  • 350 Lumen max output
  • Settings include proximity and distance modes, dimming, strobe, red LED nightvision and lock mode
  • Multifaceted optical efficiency lens technology
  • IP67: Waterproof-Tested to operate at least 1.0 meters underwater for 30 minutes.
  • Integrated battery meter display shows % of power remaining
  • Digital lock mode feature safeguards against accidental use when stored in a pack or pocket.
  • Red night vision has dimming and strobe modes and activates without cycling through the white mode


  • Weighs: 74g
  • Low Power: 6 lumens / 10 metres / 225 hours
  • Medium: 175 lumens / 45 metres / 10 hours (reserve .5h)
  • Max Power: 350 lumens / 64 mtres / 5 hours (reserve 1h)

Material & Construction

  • Recycled elastic headband featuring comfortable next to skin
  • Repreve fiber construction
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