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- Astro 300-R vs NU21
Black Diamond Astro 300-R vs Nitecore NU21
What Astro 300-R does better (1) and where NU21 wins (3) — every spec side by side.
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3.7Brightness & throw3.1
2.8Battery & charging3.8
2.6Build & durability5.5
Why is Astro 300-R better than NU21?
- Battery capacity1,500 mAh vs 500 mAh3×
Why is NU21 better than Astro 300-R?
- USB-C chargingNo · Astro 300-R: Yes
- Maximum output300 lm vs 360 lm+20%
- Water protection (IPx)IPx4 vs IPx6+50%
Specifications
Side by side
| Light output | ||
| Maximum output | 300 lm | 360 lm |
| Peak beam intensity | — | 840 cd |
| Beam distance (ANSI FL1) | — | 58 m |
| Light source | LED | LED |
| LED & beam | ||
| Number of LEDs | — | 2 |
| Battery & charging | ||
| Battery | Built-in Li-ion / Li-Po | Built-in Li-ion / Li-Po |
| Battery capacity | 1,500 mAh | 500 mAh |
| Maximum runtime | — | 37 h |
| Rechargeable | Yes | Yes |
| USB-C charging | No | Yes |
| Battery level indicator | — | Yes |
| Build & durability | ||
| Protection rating | — | IP66 |
| Water protection (IPx) | IPx4 | IPx6 |
| Impact resistance (drop) | — | 1 m |
| Body material | — | Plastic / polymer |
| Size & weight | ||
| Weight | — | 44 g |
| Modes & features | ||
| SOS / beacon | — | Yes |
| Red light | — | Yes |
| Lockout | — | Yes |
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