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- K40M vs S21
Acebeam K40M vs RovyVon S21
What K40M does better (0) and where S21 wins (0) — every spec side by side.
Why is K40M better than S21?
K40M has no measurable advantages in this pair.
Why is S21 better than K40M?
S21 has no measurable advantages in this pair.
Specifications
Side by side
| Light output | ||
| Maximum output | 3,000 lm | 3,000 lm |
| Peak beam intensity | 62,500 cd | — |
| Beam distance (ANSI FL1) | 500 m | — |
| Light source | LED | LED |
| LED & beam | ||
| LED maker | Cree | — |
| Battery & charging | ||
| Battery capacity | — | 5,000 mAh |
| Rechargeable | — | Yes |
| USB-C charging | — | Yes |
| Battery level indicator | — | Yes |
| Build & durability | ||
| Protection rating | — | IP68 |
| Water protection (IPx) | — | IPx8 |
| Magnetic tail / base | — | Yes |
| Size & weight | ||
| Weight | — | 116 g |
