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- Duo S vs Free
Petzl Duo S vs Silva Free
What Duo S does better (1) and where Free wins (2) — every spec side by side.
Why is Duo S better than Free?
- Beam distance (ANSI FL1)200 m vs 150 m+33%
Why is Free better than Duo S?
- Maximum runtime23 h vs 35 h+52%
- Maximum output1,100 lm vs 1,200 lm+9%
Specifications
Side by side
| Light output | ||
| Maximum output | 1,100 lm | 1,200 lm |
| Beam distance (ANSI FL1) | 200 m | 150 m |
| Light source | LED | LED |
| Adjustable focus (zoom) | — | Yes |
| Battery & charging | ||
| Battery | Built-in Li-ion / Li-Po | — |
| Maximum runtime | 23 h | 35 h |
| Rechargeable | Yes | — |
| USB-C charging | — | Yes |
| Charging time | 4 h | — |
| Battery level indicator | — | Yes |
| Build & durability | ||
| Water protection (IPx) | IPx7 | IPx7 |
| Submersible to | 1 m | — |
| Body material | — | Aluminium |
| Size & weight | ||
| Weight | — | 316 g |
| Modes & features | ||
| Colours | Yellow, Black | Black |
