Black Diamond Storm Headlamp vs Black Diamond Cosmo Headlamp
Black Diamond Storm Headlamp ($79.95) vs Black Diamond Cosmo Headlamp ($44.95) — side-by-side specs, weight, pros and cons to help you pick the right headlamp.
Spec-by-spec
| Spec | Black Diamond Storm Headlamp | Black Diamond Cosmo Headlamp |
|---|---|---|
| Price | $79.95 | $44.95 |
| Weight | 102g | 88g |
| Weight | 102g (Black Diamond) | 88 g (Black Diamond spec) |
| Output | 550 lumens | — |
| Battery | 1800 mAh Li-ion, USB-C | — |
| Rating | IP67 | — |
| Burn | 70 h max | — |
| Max output | — | 350 lumens |
| Max burn time | — | 200 hours |
| Power | — | 3 x AAA or BD 1500 rechargeable (sold separately) |
| Waterproofing | — | IPX7 |
| Charging | — | USB-C with optional BD 1500 battery |
Pros & Cons
Black Diamond Storm Headlamp
- 550 lumens
- USB-C rechargeable
- IP67 rating
- $79.95
- 102g
- Battery is built in
Black Diamond Cosmo Headlamp
- Light at 88 g
- Dual fuel: AAA or rechargeable pack
- Dimmable red LED
- IPX7
- Rechargeable battery sold separately
- 350 lumens is modest
- Dual-button interface takes a moment to learn
- No lockout listed on the spec sheet
Black Diamond Cosmo Headlamp is the better value at $44.95. Both are part of our curated headlamp index — tap through to check current pricing.