Fenix UC35 V2.0 USB vs Streamlight ProTac 2L-X USB size comparison
The Streamlight ProTac 2L-X USB is 9.4 mm (0.37 in) shorter than the Fenix UC35 V2.0 USB, and 1.5 mm wider at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
The Streamlight ProTac 2L-X USB is 9.4 mm (0.37 in) shorter than the Fenix UC35 V2.0 USB, and 1.5 mm wider at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
Dimensions
| Fenix UC35 V2.0 USB Check price ↗ | Streamlight ProTac 2L-X USB Check price ↗ | |
| Length | 140 mm (5.51 in) | 130.6 mm (5.14 in)−9.4 mm |
| Head / width | 25.4 mm (1.00 in) | 26.9 mm (1.06 in)+1.5 mm |
| Body | 23.5 mm (0.93 in) | 23.9 mm (0.94 in)+0.4 mm |
| Weight | 89 g without battery | 125 g with battery |
| Battery | 18650 / 2x CR123A | 18650 / 2x CR123A |
| Max output | 1,000 lm | 500 lm |
| Throw | 266 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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UC35 V2.0 USB 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 140 mm (5.51 in), a difference of 9.4 mm (7%). At its widest point the Fenix UC35 V2.0 USB is 1.5 mm slimmer (25.4 vs 26.9 mm). Weights are published on different bases (Fenix UC35 V2.0 USB: 89 g without battery; Streamlight ProTac 2L-X USB: 125 g with battery), so they are not directly comparable.
Brightness and throw
The Fenix UC35 V2.0 USB is rated brighter: 1,000 lm maximum vs 500 lm for the Streamlight ProTac 2L-X USB, 100% 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 UC35 V2.0 USB 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 UC35 V2.0 USB if you want a slimmer profile (1.5 mm narrower) and more output (1,000 lm vs 500 lm). Choose the Streamlight ProTac 2L-X USB if you want a shorter light (9.4 mm shorter). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix UC35 V2.0 USB Check price ↗ Streamlight ProTac 2L-X USB
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UC35 V2.0 USB vs ProTac 2L-X USB FAQ
Which is smaller, the Fenix UC35 V2.0 USB or the Streamlight ProTac 2L-X USB?
The Streamlight ProTac 2L-X USB is the shorter light: 130.6 mm (5.14 in) against 140 mm (5.51 in), a difference of 9.4 mm (7%). At its widest point the Fenix UC35 V2.0 USB is 1.5 mm slimmer (25.4 vs 26.9 mm). Weights are published on different bases (Fenix UC35 V2.0 USB: 89 g without battery; Streamlight ProTac 2L-X USB: 125 g with battery), so they are not directly comparable.
Which is brighter, the Fenix UC35 V2.0 USB or the Streamlight ProTac 2L-X USB?
The Fenix UC35 V2.0 USB is rated brighter: 1,000 lm maximum vs 500 lm for the Streamlight ProTac 2L-X USB, 100% more.
Which is cheaper, the Fenix UC35 V2.0 USB or the Streamlight ProTac 2L-X USB?
When we checked on Nov 4, 2026, the Fenix UC35 V2.0 USB 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 UC35 V2.0 USB 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 UC35 V2.0 USB with similar lights
Compare Streamlight ProTac 2L-X USB with similar lights
More
Sources
- Fenix UC35 V2.0 USB: specs from Fenix product page (manufacturer). Drawing: outline from published specs. 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. Drawing: outline from published specs. Price $83.05 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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