Fenix TK17 size & dimensions
Fenix TK17 shown at true scale next to a credit card. Add another light to compare.
Specs
| Fenix TK17 Check price ↗ | |
| Length | 148.5 mm (5.85 in) |
| Head / width | 36 mm (1.42 in) |
| Body | 25.4 mm (1.00 in) |
| Weight | 197.2 g with battery |
| Battery | One included 6000mAh rechargeable li-ion |
| Max output | 3,600 lm |
| Throw | 330 m |
| Type | Tactical |
| Price | $104.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced |
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Size in everyday terms
The Fenix TK17 is 148.5 mm (5.85 in) long and 36 mm (1.42 in) across at its widest point. That is about 1.7 times the length of a credit card (85.6 mm), or about 2.9 AA batteries end to end (50.5 mm each). Its widest point is 11.7 mm wider than a US quarter (24.26 mm). Next to a phone the size of an iPhone 15 (147.6 mm tall) it is 101% as long.
How it ranks
Among the 26 tactical lights in our catalog, the Fenix TK17 is the 15th shortest, 4th brightest of 26 with a published output and 20th for throw of 26 with a published beam distance.
Battery, output and weight
The Fenix TK17 runs on its own battery (One included 6000mAh rechargeable li-ion). The manufacturer rates its maximum output at 3,600 lm and its throw at 330 m. Listed weight is 197.2 g (with battery). When we checked on Nov 4, 2026, it was $104.95 at fenixlighting.com.
Featured in: Best tactical flashlights (#20), Best rechargeable flashlights with a built-in battery (#14).
Fenix TK17 vs…
TK17 FAQ
How big is the Fenix TK17?
The Fenix TK17 is 148.5 mm (5.85 in) long and 36 mm (1.42 in) across at its widest point. That is about 1.7 times the length of a credit card (85.6 mm), or about 2.9 AA batteries end to end (50.5 mm each). Its widest point is 11.7 mm wider than a US quarter (24.26 mm). Next to a phone the size of an iPhone 15 (147.6 mm tall) it is 101% as long.
What battery does the Fenix TK17 use?
The Fenix TK17 runs on its own battery (One included 6000mAh rechargeable li-ion).
How bright is the Fenix TK17?
The manufacturer rates the Fenix TK17 at 3,600 lm maximum output, with 330 m of throw.
More Fenix lights
See also: Best tactical flashlights
Sources
- Fenix TK17: specs from Fenix product page (manufacturer). Price $104.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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