Fenix LD35R vs Streamlight ProTac 2L-X USB size comparison
The Streamlight ProTac 2L-X USB is 5.8 mm (0.23 in) shorter than the Fenix LD35R, and 7.1 mm narrower at its widest point. It is 60 g lighter (with battery).
The Streamlight ProTac 2L-X USB is 5.8 mm (0.23 in) shorter than the Fenix LD35R, and 7.1 mm narrower at its widest point. It is 60 g lighter (with battery).
Dimensions
| Fenix LD35R Check price ↗ | Streamlight ProTac 2L-X USB Check price ↗ | |
| Length | 136.4 mm (5.37 in) | 130.6 mm (5.14 in)−5.8 mm |
| Head / width | 34 mm (1.34 in) | 26.9 mm (1.06 in)−7.1 mm |
| Body | 25.4 mm (1.00 in) | 23.9 mm (0.94 in)−1.5 mm |
| Weight | 185 g with battery | 125 g with battery−60 g |
| Battery | 18650 / 2x CR123A | 18650 / 2x CR123A |
| Max output | 1,800 lm | 500 lm |
| Throw | 337 m | — |
| Type | EDC | EDC |
| Price | $89.95 at fenixlighting.com, as of Nov 4, 2026 | $83.05 at batteryjunction.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced | batteryjunction.com sourced |
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LD35R vs ProTac 2L-X USB: how they differ
Size and weight
The Streamlight ProTac 2L-X USB is the shorter light: 130.6 mm (5.14 in) against 136.4 mm (5.37 in), a difference of 5.8 mm (4%). At its widest point the Streamlight ProTac 2L-X USB is 7.1 mm slimmer (26.9 vs 34 mm). The Streamlight ProTac 2L-X USB is 60 g lighter (125 g vs 185 g, with battery).
Brightness and throw
The Fenix LD35R is rated brighter: 1,800 lm maximum vs 500 lm for the Streamlight ProTac 2L-X USB, 260% more.
Battery
Both run on removable 18650 / 2x CR123A batteries, so spare cells work in either light.
Price
When we checked on Nov 4, 2026, the Fenix LD35R was $89.95 at fenixlighting.com and the Streamlight ProTac 2L-X USB $83.05 at batteryjunction.com, so the Streamlight ProTac 2L-X USB cost $6.90 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 LD35R if you want more output (1,800 lm vs 500 lm). Choose the Streamlight ProTac 2L-X USB if you want a shorter light (5.8 mm shorter), a slimmer profile (7.1 mm narrower) and less weight (60 g lighter). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix LD35R Check price ↗ Streamlight ProTac 2L-X USB
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
LD35R vs ProTac 2L-X USB FAQ
Which is smaller, the Fenix LD35R or the Streamlight ProTac 2L-X USB?
The Streamlight ProTac 2L-X USB is the shorter light: 130.6 mm (5.14 in) against 136.4 mm (5.37 in), a difference of 5.8 mm (4%). At its widest point the Streamlight ProTac 2L-X USB is 7.1 mm slimmer (26.9 vs 34 mm). The Streamlight ProTac 2L-X USB is 60 g lighter (125 g vs 185 g, with battery).
Which is brighter, the Fenix LD35R or the Streamlight ProTac 2L-X USB?
The Fenix LD35R is rated brighter: 1,800 lm maximum vs 500 lm for the Streamlight ProTac 2L-X USB, 260% more.
Which is cheaper, the Fenix LD35R or the Streamlight ProTac 2L-X USB?
When we checked on Nov 4, 2026, the Fenix LD35R was $89.95 at fenixlighting.com and the Streamlight ProTac 2L-X USB $83.05 at batteryjunction.com, so the Streamlight ProTac 2L-X USB cost $6.90 less. Prices change often, so check the current price before you buy.
Do the Fenix LD35R and Streamlight ProTac 2L-X USB use the same battery?
Both run on removable 18650 / 2x CR123A batteries, so spare cells work in either light.
Compare Fenix LD35R with similar lights
Compare Streamlight ProTac 2L-X USB with similar lights
More
Sources
- Fenix LD35R: specs from Fenix product page (manufacturer). Price $89.95 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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