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- DEFENDER P17 vs S21
Acebeam DEFENDER P17 vs RovyVon S21
What DEFENDER P17 does better (1) and where S21 wins (1) — every spec side by side.
vs
4.9Brightness & throw7.3
9.4Battery & charging7.3
5.8Build & durability8.4
Why is DEFENDER P17 better than S21?
- Maximum output4,900 lm vs 3,000 lm+63%
Why is S21 better than DEFENDER P17?
- Weight154 g vs 116 g+33%
Specifications
Side by side
| Light output | ||
| Maximum output | 4,900 lm | 3,000 lm |
| Peak beam intensity | 7,396 cd | — |
| Beam distance (ANSI FL1) | 172 m | — |
| Light source | LED | LED |
| LED & beam | ||
| LED emitter | Cree XHP70 | — |
| LED maker | Cree | — |
| Colour temperature | 6,500K | — |
| Battery & charging | ||
| Battery | 21700 Li-ion | — |
| Battery capacity | 5,000 mAh | 5,000 mAh |
| Maximum runtime | 480 h | — |
| Rechargeable | Yes | Yes |
| USB-C charging | Yes | Yes |
| Battery level indicator | — | Yes |
| Build & durability | ||
| Protection rating | IP68 | IP68 |
| Water protection (IPx) | IPx8 | IPx8 |
| Submersible to | 1.5 m | — |
| Impact resistance (drop) | 1.5 m | — |
| Body material | Aluminium | — |
| Magnetic tail / base | — | Yes |
| Size & weight | ||
| Weight | 154 g | 116 g |
| Modes & features | ||
| Brightness levels | 5 | — |
| Switch | Dual switches | — |
| Tactical tail switch (momentary on) | Yes | — |
| Strobe | Yes | — |
| SOS / beacon | Yes | — |
