Sofirn IF22A vs Streamlight ProTac 2L-X USB size comparison
The Streamlight ProTac 2L-X USB is 3.5 mm (0.14 in) longer than the Sofirn IF22A, and 15.1 mm narrower 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 3.5 mm (0.14 in) longer than the Sofirn IF22A, and 15.1 mm narrower at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
Dimensions
| Sofirn IF22A Check price ↗ | Streamlight ProTac 2L-X USB Check price ↗ | |
| Length | 127.1 mm (5.00 in) | 130.6 mm (5.14 in)+3.5 mm |
| Head / width | 42 mm (1.65 in) | 26.9 mm (1.06 in)−15.1 mm |
| Body | 28 mm (1.10 in) | 23.9 mm (0.94 in)−4.1 mm |
| Weight | 120 g without battery | 125 g with battery |
| Battery | 21700 | 18650 / 2x CR123A |
| Max output | 2,100 lm | 500 lm |
| Throw | — | — |
| Type | EDC | EDC |
| Price | not verified yet | $83.05 at batteryjunction.com, as of Nov 4, 2026 |
| Source | sofirnlight.com sourced Pocket thrower | batteryjunction.com sourced |
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IF22A vs ProTac 2L-X USB: how they differ
Size and weight
The Sofirn IF22A is the shorter light: 127.1 mm (5.00 in) against 130.6 mm (5.14 in), a difference of 3.5 mm (3%). At its widest point the Streamlight ProTac 2L-X USB is 15.1 mm slimmer (26.9 vs 42 mm). Weights are published on different bases (Sofirn IF22A: 120 g without battery; Streamlight ProTac 2L-X USB: 125 g with battery), so they are not directly comparable.
Brightness and throw
The Sofirn IF22A is rated brighter: 2,100 lm maximum vs 500 lm for the Streamlight ProTac 2L-X USB, 320% more.
Battery
The Sofirn IF22A 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).
Type
Both are EDC lights in our catalog with a tube body.
Which should you buy?
Choose the Sofirn IF22A if you want a shorter light (3.5 mm shorter) and more output (2,100 lm vs 500 lm). Choose the Streamlight ProTac 2L-X USB if you want a slimmer profile (15.1 mm narrower). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Sofirn IF22A Check price ↗ Streamlight ProTac 2L-X USB
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IF22A vs ProTac 2L-X USB FAQ
Which is smaller, the Sofirn IF22A or the Streamlight ProTac 2L-X USB?
The Sofirn IF22A is the shorter light: 127.1 mm (5.00 in) against 130.6 mm (5.14 in), a difference of 3.5 mm (3%). At its widest point the Streamlight ProTac 2L-X USB is 15.1 mm slimmer (26.9 vs 42 mm). Weights are published on different bases (Sofirn IF22A: 120 g without battery; Streamlight ProTac 2L-X USB: 125 g with battery), so they are not directly comparable.
Which is brighter, the Sofirn IF22A or the Streamlight ProTac 2L-X USB?
The Sofirn IF22A is rated brighter: 2,100 lm maximum vs 500 lm for the Streamlight ProTac 2L-X USB, 320% more.
Do the Sofirn IF22A and Streamlight ProTac 2L-X USB use the same battery?
The Sofirn IF22A 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 Sofirn IF22A with similar lights
Compare Streamlight ProTac 2L-X USB with similar lights
More
Sources
- Sofirn IF22A: specs from manufacturer published specs as listed by sofirnlight.com. No verified price yet.
- 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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