Streamlight ProTac 2L-X USB vs SureFire G2X Pro size comparison
The SureFire G2X Pro is 1.5 mm (0.06 in) longer than the Streamlight ProTac 2L-X USB, and 4.8 mm wider at its widest point. It is about the same weight (with battery).
The SureFire G2X Pro is 1.5 mm (0.06 in) longer than the Streamlight ProTac 2L-X USB, and 4.8 mm wider at its widest point. It is about the same weight (with battery).
Dimensions
| Streamlight ProTac 2L-X USB Check price ↗ | SureFire G2X Pro Check price ↗ | |
| Length | 130.6 mm (5.14 in) | 132.1 mm (5.20 in)+1.5 mm |
| Head / width | 26.9 mm (1.06 in) | 31.8 mm (1.25 in)+4.8 mm |
| Body | 23.9 mm (0.94 in) | 25.4 mm (1.00 in)+1.5 mm |
| Weight | 125 g with battery | 124.7 g with batteries−0 g |
| Battery | 18650 / 2x CR123A | 2x CR123A |
| Max output | 500 lm | 600 lm |
| Throw | — | — |
| Type | EDC | EDC |
| Price | $83.05 at batteryjunction.com, as of Nov 4, 2026 | $99.00 at batteryjunction.com, as of Nov 4, 2026 |
| Source | batteryjunction.com sourced | batteryjunction.com sourced |
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ProTac 2L-X USB vs G2X Pro: how they differ
Size and weight
The Streamlight ProTac 2L-X USB is the shorter light: 130.6 mm (5.14 in) against 132.1 mm (5.20 in), a difference of 1.5 mm (1%). At its widest point the Streamlight ProTac 2L-X USB is 4.8 mm slimmer (26.9 vs 31.8 mm). They weigh about the same (125 g, with battery).
Brightness and throw
The SureFire G2X Pro is rated brighter: 600 lm maximum vs 500 lm for the Streamlight ProTac 2L-X USB, 20% more.
Battery
The Streamlight ProTac 2L-X USB runs on removable 18650 / 2x CR123A batteries; the SureFire G2X Pro runs on removable 2x CR123A batteries. For scale, a 18650 cell is about 18 × 65 mm and a CR123A about 17 × 34.5 mm (nominal).
Price
When we checked on Nov 4, 2026, the Streamlight ProTac 2L-X USB was $83.05 at batteryjunction.com and the SureFire G2X Pro $99.00 at batteryjunction.com, so the Streamlight ProTac 2L-X USB cost $15.95 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 Streamlight ProTac 2L-X USB if you want a slimmer profile (4.8 mm narrower). Choose the SureFire G2X Pro if you want more output (600 lm vs 500 lm). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Streamlight ProTac 2L-X USB Check price ↗ SureFire G2X Pro
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ProTac 2L-X USB vs G2X Pro FAQ
Which is smaller, the Streamlight ProTac 2L-X USB or the SureFire G2X Pro?
The Streamlight ProTac 2L-X USB is the shorter light: 130.6 mm (5.14 in) against 132.1 mm (5.20 in), a difference of 1.5 mm (1%). At its widest point the Streamlight ProTac 2L-X USB is 4.8 mm slimmer (26.9 vs 31.8 mm). They weigh about the same (125 g, with battery).
Which is brighter, the Streamlight ProTac 2L-X USB or the SureFire G2X Pro?
The SureFire G2X Pro is rated brighter: 600 lm maximum vs 500 lm for the Streamlight ProTac 2L-X USB, 20% more.
Which is cheaper, the Streamlight ProTac 2L-X USB or the SureFire G2X Pro?
When we checked on Nov 4, 2026, the Streamlight ProTac 2L-X USB was $83.05 at batteryjunction.com and the SureFire G2X Pro $99.00 at batteryjunction.com, so the Streamlight ProTac 2L-X USB cost $15.95 less. Prices change often, so check the current price before you buy.
Do the Streamlight ProTac 2L-X USB and SureFire G2X Pro use the same battery?
The Streamlight ProTac 2L-X USB runs on removable 18650 / 2x CR123A batteries; the SureFire G2X Pro runs on removable 2x CR123A batteries. For scale, a 18650 cell is about 18 × 65 mm and a CR123A about 17 × 34.5 mm (nominal).
Compare Streamlight ProTac 2L-X USB with similar lights
Compare SureFire G2X Pro with similar lights
More
Sources
- 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.
- SureFire G2X Pro: specs from manufacturer published specs as listed by batteryjunction.com. Drawing: shape measured from manufacturer photo (batteryjunction.com), scaled to the published length and diameter. Price $99.00 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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