Fenix LD31 RENEGADE vs Streamlight ProTac 2L-X USB size comparison
The Streamlight ProTac 2L-X USB is 4.2 mm (0.16 in) longer than the Fenix LD31 RENEGADE, with about the same max diameter/width. It is 39 g lighter (with battery).
The Streamlight ProTac 2L-X USB is 4.2 mm (0.16 in) longer than the Fenix LD31 RENEGADE, with about the same max diameter/width. It is 39 g lighter (with battery).
Dimensions
| Fenix LD31 RENEGADE Check price ↗ | Streamlight ProTac 2L-X USB Check price ↗ | |
| Length | 126.4 mm (4.98 in) | 130.6 mm (5.14 in)+4.2 mm |
| Head / width | 26.5 mm (1.04 in) | 26.9 mm (1.06 in)+0.4 mm |
| Body | 25.6 mm (1.01 in) | 23.9 mm (0.94 in)−1.7 mm |
| Weight | 164 g with battery | 125 g with battery−39 g |
| Battery | 21700 | 18650 / 2x CR123A |
| Max output | 3,200 lm | 500 lm |
| Throw | 355 m | — |
| Type | EDC | EDC |
| Price | $99.95 at fenixlighting.com, as of Nov 4, 2026 | $83.05 at batteryjunction.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced Listed 26.5 mm wide x 25.6 mm high | batteryjunction.com sourced |
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LD31 RENEGADE vs ProTac 2L-X USB: how they differ
Size and weight
The Fenix LD31 RENEGADE is the shorter light: 126.4 mm (4.98 in) against 130.6 mm (5.14 in), a difference of 4.2 mm (3%). At their widest points they are about the same (26.5 vs 26.9 mm). The Streamlight ProTac 2L-X USB is 39 g lighter (125 g vs 164 g, with battery).
Brightness and throw
The Fenix LD31 RENEGADE is rated brighter: 3,200 lm maximum vs 500 lm for the Streamlight ProTac 2L-X USB, 540% more.
Battery
The Fenix LD31 RENEGADE runs on a removable 21700 battery; the Streamlight ProTac 2L-X USB 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 LD31 RENEGADE was $99.95 at fenixlighting.com and the Streamlight ProTac 2L-X USB $83.05 at batteryjunction.com, so the Streamlight ProTac 2L-X USB cost $16.90 less. 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 LD31 RENEGADE if you want a shorter light (4.2 mm shorter) and more output (3,200 lm vs 500 lm). Choose the Streamlight ProTac 2L-X USB if you want less weight (39 g lighter). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix LD31 RENEGADE Check price ↗ Streamlight ProTac 2L-X USB
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LD31 RENEGADE vs ProTac 2L-X USB FAQ
Which is smaller, the Fenix LD31 RENEGADE or the Streamlight ProTac 2L-X USB?
The Fenix LD31 RENEGADE is the shorter light: 126.4 mm (4.98 in) against 130.6 mm (5.14 in), a difference of 4.2 mm (3%). At their widest points they are about the same (26.5 vs 26.9 mm). The Streamlight ProTac 2L-X USB is 39 g lighter (125 g vs 164 g, with battery).
Which is brighter, the Fenix LD31 RENEGADE or the Streamlight ProTac 2L-X USB?
The Fenix LD31 RENEGADE is rated brighter: 3,200 lm maximum vs 500 lm for the Streamlight ProTac 2L-X USB, 540% more.
Which is cheaper, the Fenix LD31 RENEGADE or the Streamlight ProTac 2L-X USB?
When we checked on Nov 4, 2026, the Fenix LD31 RENEGADE was $99.95 at fenixlighting.com and the Streamlight ProTac 2L-X USB $83.05 at batteryjunction.com, so the Streamlight ProTac 2L-X USB cost $16.90 less. Prices change often, so check the current price before you buy.
Do the Fenix LD31 RENEGADE and Streamlight ProTac 2L-X USB use the same battery?
The Fenix LD31 RENEGADE runs on a removable 21700 battery; the Streamlight ProTac 2L-X USB 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).
Compare Fenix LD31 RENEGADE with similar lights
Compare Streamlight ProTac 2L-X USB with similar lights
More
Sources
- Fenix LD31 RENEGADE: specs from Fenix product page (manufacturer). Price $99.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- Streamlight ProTac 2L-X USB: specs from manufacturer published specs as listed by batteryjunction.com. Price $83.05 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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