Fenix LD12R vs ThruNite TC15 V3 size comparison
The ThruNite TC15 V3 is 1 mm (0.04 in) longer than the Fenix LD12R, and 5 mm wider at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
The ThruNite TC15 V3 is 1 mm (0.04 in) longer than the Fenix LD12R, and 5 mm wider at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
Dimensions
| Fenix LD12R Check price ↗ | ThruNite TC15 V3 Check price ↗ | |
| Length | 121 mm (4.76 in) | 122 mm (4.80 in)+1 mm |
| Head / width | 22 mm (0.87 in) | 27 mm (1.06 in)+5 mm |
| Body | 19 mm (0.75 in) | 23 mm (0.91 in)+4 mm |
| Weight | 74 g with battery | 74 g listed |
| Battery | 14500 | 18650 |
| Max output | 600 lm | 2,403 lm |
| Throw | 186 m | 223 m |
| Type | EDC | EDC |
| Price | $59.95 at fenixlighting.com, as of Nov 4, 2026 | $59.99 at batteryjunction.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced | batteryjunction.com sourced Retailer lists W 27 x H 23 mm |
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LD12R vs TC15 V3: how they differ
Size and weight
The Fenix LD12R is the shorter light: 121 mm (4.76 in) against 122 mm (4.80 in), a difference of 1 mm (1%). At its widest point the Fenix LD12R is 5 mm slimmer (22 vs 27 mm). Weights are published on different bases (Fenix LD12R: 74 g with battery; ThruNite TC15 V3: 74 g listed), so they are not directly comparable.
Brightness and throw
The ThruNite TC15 V3 is rated brighter: 2,403 lm maximum vs 600 lm for the Fenix LD12R, 301% more. For beam distance the ThruNite TC15 V3 reaches further: 223 m vs 186 m rated throw (20% more).
Battery
The Fenix LD12R runs on a removable 14500 battery; the ThruNite TC15 V3 runs on a removable 18650 battery. For scale, a 14500 cell is about 14 × 50 mm and a 18650 about 18 × 65 mm (nominal).
Price
When we checked on Nov 4, 2026, the Fenix LD12R was $59.95 at fenixlighting.com and the ThruNite TC15 V3 $59.99 at batteryjunction.com. Prices change often, so check the current price before you buy.
Type
Both are EDC lights in our catalog with a tube body.
Which should you buy?
Choose the Fenix LD12R if you want a slimmer profile (5 mm narrower). Choose the ThruNite TC15 V3 if you want more output (2,403 lm vs 600 lm) and longer throw (223 m vs 186 m). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix LD12R Check price ↗ ThruNite TC15 V3
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
LD12R vs TC15 V3 FAQ
Which is smaller, the Fenix LD12R or the ThruNite TC15 V3?
The Fenix LD12R is the shorter light: 121 mm (4.76 in) against 122 mm (4.80 in), a difference of 1 mm (1%). At its widest point the Fenix LD12R is 5 mm slimmer (22 vs 27 mm). Weights are published on different bases (Fenix LD12R: 74 g with battery; ThruNite TC15 V3: 74 g listed), so they are not directly comparable.
Which is brighter, the Fenix LD12R or the ThruNite TC15 V3?
The ThruNite TC15 V3 is rated brighter: 2,403 lm maximum vs 600 lm for the Fenix LD12R, 301% more. For beam distance the ThruNite TC15 V3 reaches further: 223 m vs 186 m rated throw (20% more).
Which is cheaper, the Fenix LD12R or the ThruNite TC15 V3?
When we checked on Nov 4, 2026, the Fenix LD12R was $59.95 at fenixlighting.com and the ThruNite TC15 V3 $59.99 at batteryjunction.com. Prices change often, so check the current price before you buy.
Do the Fenix LD12R and ThruNite TC15 V3 use the same battery?
The Fenix LD12R runs on a removable 14500 battery; the ThruNite TC15 V3 runs on a removable 18650 battery. For scale, a 14500 cell is about 14 × 50 mm and a 18650 about 18 × 65 mm (nominal).
Compare Fenix LD12R with similar lights
Compare ThruNite TC15 V3 with similar lights
More
Sources
- Fenix LD12R: specs from Fenix product page (manufacturer). Drawing: outline from published specs. Price $59.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- ThruNite TC15 V3: specs from manufacturer published specs as listed by batteryjunction.com. Drawing: outline from published specs. Price $59.99 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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