Fenix TK11R vs Fenix TK20R V2.0 size comparison

TK11R vs TK20R V2.0: how they differ

Size and weight

The Fenix TK11R is the shorter light: 145.5 mm (5.73 in) against 153 mm (6.02 in), a difference of 7.5 mm (5%). At their widest points they are about the same (34 vs 34 mm). Weights are published on different bases (Fenix TK11R: 117.5 g without battery; Fenix TK20R V2.0: 204 g with battery), so they are not directly comparable.

Brightness and throw

The Fenix TK20R V2.0 is rated brighter: 3,000 lm maximum vs 1,600 lm for the Fenix TK11R, 88% more. For beam distance the Fenix TK20R V2.0 reaches further: 475 m vs 420 m rated throw (13% more).

Battery

The Fenix TK11R runs on removable 18650 / 2x CR123A batteries; the Fenix TK20R V2.0 runs on a removable 21700 battery. For scale, a 18650 cell is about 18 × 65 mm and a 21700 about 21 × 70 mm (nominal).

Price

When we checked on Nov 4, 2026, the Fenix TK11R was $86.95 at fenixlighting.com and the Fenix TK20R V2.0 $129.95 at fenixlighting.com, so the Fenix TK11R cost $43.00 less. Prices change often, so check the current price before you buy.

Type

Both are tactical lights in our catalog with a tube body.

Which should you buy?

Choose the Fenix TK11R if you want a shorter light (7.5 mm shorter). Choose the Fenix TK20R V2.0 if you want more output (3,000 lm vs 1,600 lm) and longer throw (475 m vs 420 m). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.

Check price ↗ Fenix TK11R Check price ↗ Fenix TK20R V2.0

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