Black Diamond
Cosmo
2026 Cosmo: 3 AAA or BD 1500 battery, 350 lm, IPX7
The 2026 Cosmo is Black Diamond's dual-fuel headlamp for camping: 350 lumens, a red light with adjustable brightness, a digital lock and an IPX7 waterproof housing at 88 g, running on three AAA batteries or the BD 1500 rechargeable battery sold separately.
Key specifications
- Overall score
- 5.1 out of 10,Mid-rangeHow we score
- Light output, brightest setting
- 350 lm
- Beam distance
- 62 m
- Burn time, brightest setting
- 3.2 h
- Power
- Rechargeable or AAA batteries
- Weight
- 88 g
- Dust and water rating
- IPX7
Full specification
Light
- Light output, brightest setting
- 350 lm
- Boost mode
- No
- Beam distance
- 62 m
- Light output, lowest setting
- 6 lm
- Figures to ANSI/PLATO FL 1
- Yes
Burn time
- Burn time, brightest setting
- 3.2 h
- Burn time, lowest setting
- 200 h
Power and charging
- Power
- Rechargeable or AAA batteries
- USB-C charging
- No
Features
- Red light
- Yes
- Automatic brightness
- No
- Lock
- Yes
Weight and protection
- Weight
- 88 g
- Dust and water rating
- IPX7
Variants
4 variants
BD6207270002ALL1Black- UK model code
BD6207270002ALL1- RRP
- £35
BD6207273018ALL1Clean green- UK model code
BD6207273018ALL1- RRP
- £35
BD6207274007ALL1Desert sky- UK model code
BD6207274007ALL1- RRP
- £35
BD6207275022ALL1Piton purple- UK model code
BD6207275022ALL1- RRP
- £35
Alternatives
Chosen from the overall scores, recommended retail prices and sizes of the models on sale in the UK.
Similar
Within a point of its score, closest in score and size
Ledlenser
NEO1ROverall score 5.1 out of 10, Mid-rangeRRP £41.95
Same score
Black Diamond
SpotOverall score 5.2 out of 10, Mid-rangeRRP £45
0.1 points higher
Ledlenser
HF4R (2026)Overall score 5.3 out of 10, Mid-rangeRRP £49.95
0.2 points higher
Cheaper
Within a point of its score, with a lower RRP
Ledlenser
HF4 (2026)Overall score 4.8 out of 10, Mid-rangeRRP £34.95
£0.05 less (based on RRP), 0.3 points lower
Better specified
More than a point higher in overall score
Black Diamond
Storm+Overall score 6.2 out of 10, Mid-rangeRRP £85
1.1 points higher
Ledlenser
HF7R (2026)Overall score 6.4 out of 10, Mid-rangeRRP £119.95
1.3 points higher
Ledlenser
HF6R (2026)Overall score 6.5 out of 10, Top of the rangeRRP £79.95
1.4 points higher
Compare with
Each link opens the two side by side in the comparison.
Sources
Specifications last checked on .
Sources (2) Close
Black Diamond UK store, Cosmo (opens in a new tab)checked
Covers: Status, Variants, Light output, brightest setting, Power, USB-C charging, Red light, Automatic brightness, Lock, Weight, Dust and water rating, Tagline, UK availability, Variants sold in the UK, UK RRP.
Black Diamond, Cosmo instructions (M15439_C) (opens in a new tab)checked
Covers: Light output, brightest setting, Boost mode, Beam distance, Light output, lowest setting, Figures to ANSI/PLATO FL 1, Burn time, brightest setting, Burn time, lowest setting.