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Astro 300
The Black Diamond Astro 300 is a 300 lm, 0.22 lb headlamp with a 55 m beam. It runs on AAA.
- Max output
- 300 lm
- Beam
- 55 m
- Weight
- 0.2 lb · 100 g
- Battery
- AAA
Image not availableFull specs
Last verified Oct 20, 2026
Unless marked otherwise, specs are from the manufacturer’s product page (blackdiamondequipment.com).
| Max output | 300 lumens |
|---|---|
| Beam distance | 55 m (60 yd) |
| Longest runtime | 140 hours |
| Battery | AAA |
|---|---|
| Battery included | Yes |
| Type | Headlamp |
|---|---|
| Weight (manufacturer) | 0.22 lb (100 g) |
| Water rating | IPX4 |
| Lockout | Yes |
|---|---|
| Colors | Octane, Azul, Graphite |
| Warranty | 3 years |
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