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- TK17 vs EDC37
Fenix TK17 vs Nitecore EDC37
What TK17 does better (1) and where EDC37 wins (5) — every spec side by side.
Dimensions
Size comparison
TK17EDC37
| TK17 | EDC37 | Difference | |
|---|---|---|---|
| Length / height | 148.5 mm | 108 mm | +40.5 mm |
| Head diameter / width | 36 mm | 39 mm | −3 mm |
| Weight | 197 g | 199 g | −2 g |
Drawn to the same scale from the official dimensions (front and side).
Why is TK17 better than EDC37?
- Water protection (IPx)IPx8 vs IPx42×
Why is EDC37 better than TK17?
- Maximum output3,600 lm vs 8,000 lm2.2×
- Maximum runtime60 h vs 190 h3.2×
- Beam distance (ANSI FL1)330 m vs 420 m+27%
- Peak beam intensity27,220 cd vs 44,010 cd+62%
- Battery capacity6,000 mAh vs 8,000 mAh+33%
Specifications
Side by side
| Light output | ||
| Maximum output | 3,600 lm | 8,000 lm |
| Peak beam intensity | 27,220 cd | 44,010 cd |
| Beam distance (ANSI FL1) | 330 m | 420 m |
| Light source | LED | LED |
| LED & beam | ||
| LED emitter | Cree XHP50 | NiteLab UHi 20 MAX |
| LED maker | Cree | NiteLab |
| Number of LEDs | — | 2 |
| Colour temperature | 5,700K | — |
| Battery & charging | ||
| Battery | 21700 Li-ion | Built-in Li-ion / Li-Po |
| Battery capacity | 6,000 mAh | 8,000 mAh |
| Maximum runtime | 60 h | 190 h |
| Rechargeable | Yes | Yes |
| USB-C charging | Yes | Yes |
| Charging time | — | 2 h |
| Battery level indicator | Yes | — |
| Build & durability | ||
| Protection rating | IP68 | IP54 |
| Water protection (IPx) | IPx8 | IPx4 |
| Impact resistance (drop) | — | 2 m |
| Body material | Aluminium | — |
| Size & weight | ||
| Length / height | 148.5 mm | 108 mm |
| Head diameter / width | 36 mm | 39 mm |
| Body diameter / depth | 25.4 mm | — |
| Weight | 197 g | 199 g |
| Modes & features | ||
| Switch | Dual switches | Tail switch |
| Tactical tail switch (momentary on) | Yes | — |
| Strobe | Yes | Yes |
| Lockout | — | Yes |
| Mode memory | Yes | — |
| Colours | — | Black |
