Fenix LD45R vs Fenix TK15R size comparison
The Fenix TK15R is 6.3 mm (0.25 in) shorter than the Fenix LD45R, and 10.5 mm narrower at its widest point. It is 97 g lighter (with battery).
The Fenix TK15R is 6.3 mm (0.25 in) shorter than the Fenix LD45R, and 10.5 mm narrower at its widest point. It is 97 g lighter (with battery).
Dimensions
| Fenix LD45R Check price ↗ | Fenix TK15R Check price ↗ | |
| Length | 155.3 mm (6.11 in) | 149 mm (5.87 in)−6.3 mm |
| Head / width | 44.5 mm (1.75 in) | 34 mm (1.34 in)−10.5 mm |
| Body | 32 mm (1.26 in) | 25.4 mm (1.00 in)−6.6 mm |
| Weight | 302 g with battery | 205.5 g with battery−97 g |
| Battery | 21700 | 21700 |
| Max output | 2,800 lm | 3,200 lm |
| Throw | 480 m | 490 m |
| Type | Tactical | Tactical |
| Price | $159.95 at fenixlighting.com, as of Nov 4, 2026 | $119.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced | fenixlighting.com sourced |
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LD45R vs TK15R: how they differ
Size and weight
The Fenix TK15R is the shorter light: 149 mm (5.87 in) against 155.3 mm (6.11 in), a difference of 6.3 mm (4%). At its widest point the Fenix TK15R is 10.5 mm slimmer (34 vs 44.5 mm). The Fenix TK15R is 97 g lighter (205.5 g vs 302 g, with battery).
Brightness and throw
The Fenix TK15R is rated brighter: 3,200 lm maximum vs 2,800 lm for the Fenix LD45R, 14% more. For beam distance the Fenix TK15R reaches further: 490 m vs 480 m rated throw (2% more).
Battery
Both run on a removable 21700 battery, so spare cells work in either light.
Price
When we checked on Nov 4, 2026, the Fenix LD45R was $159.95 at fenixlighting.com and the Fenix TK15R $119.95 at fenixlighting.com, so the Fenix TK15R cost $40.00 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 TK15R if you want a shorter light (6.3 mm shorter), a slimmer profile (10.5 mm narrower), less weight (97 g lighter) and more output (3,200 lm vs 2,800 lm). On the specs we track, the Fenix TK15R is ahead or level everywhere; the Fenix LD45R makes sense mainly if its price, interface or a feature we don't track suits you better. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix LD45R Check price ↗ Fenix TK15R
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LD45R vs TK15R FAQ
Which is smaller, the Fenix LD45R or the Fenix TK15R?
The Fenix TK15R is the shorter light: 149 mm (5.87 in) against 155.3 mm (6.11 in), a difference of 6.3 mm (4%). At its widest point the Fenix TK15R is 10.5 mm slimmer (34 vs 44.5 mm). The Fenix TK15R is 97 g lighter (205.5 g vs 302 g, with battery).
Which is brighter, the Fenix LD45R or the Fenix TK15R?
The Fenix TK15R is rated brighter: 3,200 lm maximum vs 2,800 lm for the Fenix LD45R, 14% more. For beam distance the Fenix TK15R reaches further: 490 m vs 480 m rated throw (2% more).
Which is cheaper, the Fenix LD45R or the Fenix TK15R?
When we checked on Nov 4, 2026, the Fenix LD45R was $159.95 at fenixlighting.com and the Fenix TK15R $119.95 at fenixlighting.com, so the Fenix TK15R cost $40.00 less. Prices change often, so check the current price before you buy.
Do the Fenix LD45R and Fenix TK15R use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Fenix LD45R with similar lights
Compare Fenix TK15R with similar lights
More
Sources
- Fenix LD45R: specs from Fenix product page (manufacturer). Price $159.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- Fenix TK15R: specs from Fenix product page (manufacturer). Price $119.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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