Fenix TK20R UE size & dimensions
Fenix TK20R UE shown at true scale next to a 21700 cell. Add another light to compare.
Specs
| Fenix TK20R UE Check price ↗ | |
| Length | 153.7 mm (6.05 in) |
| Head / width | 34 mm (1.34 in) |
| Body | 25.4 mm (1.00 in) |
| Weight | 204 g with battery |
| Battery | 21700 |
| Max output | 2,800 lm |
| Throw | 465 m |
| Type | Tactical |
| Price | $89.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced |
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Size in everyday terms
The Fenix TK20R UE is 153.7 mm (6.05 in) long and 34 mm (1.34 in) across at its widest point. That is about 1.8 times the length of a credit card (85.6 mm), or about 3.0 AA batteries end to end (50.5 mm each). Its widest point is 9.7 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 104% as long.
How it ranks
Among the 26 tactical lights in our catalog, the Fenix TK20R UE is the 20th shortest, 16th brightest of 26 with a published output and 9th for throw of 26 with a published beam distance.
Battery, output and weight
The Fenix TK20R UE runs on a removable 21700 battery. The manufacturer rates its maximum output at 2,800 lm and its throw at 465 m. Listed weight is 204 g (with battery). When we checked on Nov 4, 2026, it was $89.95 at fenixlighting.com.
Featured in: Best tactical flashlights (#9), Best flashlights under $100 (#25).
Fenix TK20R UE vs…
TK20R UE FAQ
How big is the Fenix TK20R UE?
The Fenix TK20R UE is 153.7 mm (6.05 in) long and 34 mm (1.34 in) across at its widest point. That is about 1.8 times the length of a credit card (85.6 mm), or about 3.0 AA batteries end to end (50.5 mm each). Its widest point is 9.7 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 104% as long.
What battery does the Fenix TK20R UE use?
The Fenix TK20R UE runs on a removable 21700 battery.
How bright is the Fenix TK20R UE?
The manufacturer rates the Fenix TK20R UE at 2,800 lm maximum output, with 465 m of throw.
More Fenix lights
See also: Best tactical flashlights
Sources
- Fenix TK20R UE: specs from Fenix product page (manufacturer). Price $89.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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