Fenix LD45R vs Fenix TK35UE V2.0 size comparison

LD45R vs TK35UE V2.0: how they differ

Size and weight

The Fenix TK35UE V2.0 is the shorter light: 143 mm (5.63 in) against 155.3 mm (6.11 in), a difference of 12.3 mm (8%). At its widest point the Fenix TK35UE V2.0 is 1.5 mm slimmer (43 vs 44.5 mm). Weights are published on different bases (Fenix LD45R: 302 g with battery; Fenix TK35UE V2.0: 202 g without battery), so they are not directly comparable.

Brightness and throw

The Fenix TK35UE V2.0 is rated brighter: 5,000 lm maximum vs 2,800 lm for the Fenix LD45R, 79% more. For beam distance the Fenix LD45R reaches further: 480 m vs 400 m rated throw (20% more).

Battery

The Fenix LD45R runs on a removable 21700 battery; the Fenix TK35UE V2.0 runs on removable 18650 / 2x CR123A batteries. For scale, a 21700 cell is about 21 × 70 mm and a 18650 about 18 × 65 mm (nominal).

Price

When we checked on Nov 4, 2026, the Fenix LD45R was $159.95 at fenixlighting.com and the Fenix TK35UE V2.0 $139.95 at fenixlighting.com, so the Fenix TK35UE V2.0 cost $20.00 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 LD45R if you want longer throw (480 m vs 400 m). Choose the Fenix TK35UE V2.0 if you want a shorter light (12.3 mm shorter), a slimmer profile (1.5 mm narrower) and more output (5,000 lm vs 2,800 lm). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.

Check price ↗ Fenix LD45R Check price ↗ Fenix TK35UE V2.0

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