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- KL1 vs NU40
Kask KL1 vs Nitecore NU40
What KL1 does better (1) and where NU40 wins (0) — every spec side by side.
Why is KL1 better than NU40?
- Submersible to2 m vs 1.5 m+33%
Why is NU40 better than KL1?
NU40 has no measurable advantages in this pair.
Specifications
Side by side
| Light output | ||
| Maximum output | — | 1,000 lm |
| Light source | LED | LED |
| Battery & charging | ||
| Battery | AA | 18650 Li-ion |
| Battery capacity | — | 2,600 mAh |
| Rechargeable | — | Yes |
| USB-C charging | — | Yes |
| Build & durability | ||
| Water protection (IPx) | IPx8 | IPx8 |
| Submersible to | 2 m | 1.5 m |
| Body material | — | Aluminium |
| Size & weight | ||
| Head diameter / width | — | 50 mm |
| Modes & features | ||
| SOS / beacon | — | Yes |
| Red light | — | Yes |
| Colours | — | Black |
