Sofirn SC31 Pro vs Streamlight MacroStream USB size comparison
The Streamlight MacroStream USB is 3.5 mm (0.14 in) shorter than the Sofirn SC31 Pro, and 4.4 mm narrower at its widest point. Weights are published on different bases (listed vs without battery), so compare them with care.
The Streamlight MacroStream USB is 3.5 mm (0.14 in) shorter than the Sofirn SC31 Pro, and 4.4 mm narrower at its widest point. Weights are published on different bases (listed vs without battery), so compare them with care.
Dimensions
| Sofirn SC31 Pro Check price ↗ | Streamlight MacroStream USB Check price ↗ | |
| Length | 117.5 mm (4.63 in) | 114 mm (4.49 in)−3.5 mm |
| Head / width | 25.4 mm (1.00 in) | 21 mm (0.83 in)−4.4 mm |
| Body | — | 21 mm (0.83 in) |
| Weight | 59 g without battery | 62 g listed |
| Battery | 18650 | Built-in |
| Max output | 2,000 lm | 500 lm |
| Throw | — | 90 m |
| Type | EDC | EDC |
| Price | not verified yet | $71.20 at batteryjunction.com, as of Nov 4, 2026 |
| Source | sofirnlight.com sourced Only head diameter listed | batteryjunction.com sourced Only body diameter listed |
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SC31 Pro vs MacroStream USB: how they differ
Size and weight
The Streamlight MacroStream USB is the shorter light: 114 mm (4.49 in) against 117.5 mm (4.63 in), a difference of 3.5 mm (3%). At its widest point the Streamlight MacroStream USB is 4.4 mm slimmer (21 vs 25.4 mm). Weights are published on different bases (Sofirn SC31 Pro: 59 g without battery; Streamlight MacroStream USB: 62 g listed), so they are not directly comparable.
Brightness and throw
The Sofirn SC31 Pro is rated brighter: 2,000 lm maximum vs 500 lm for the Streamlight MacroStream USB, 300% more.
Battery
The Sofirn SC31 Pro runs on a removable 18650 battery; the Streamlight MacroStream USB runs on a built-in rechargeable battery. Only the Sofirn SC31 Pro lets you swap in a charged spare.
Type
Both are EDC lights in our catalog with a tube body.
Which should you buy?
Choose the Sofirn SC31 Pro if you want more output (2,000 lm vs 500 lm) and a removable cell you can swap. Choose the Streamlight MacroStream USB if you want a shorter light (3.5 mm shorter), a slimmer profile (4.4 mm narrower) and a built-in battery with no separate cell to buy. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Sofirn SC31 Pro Check price ↗ Streamlight MacroStream USB
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
SC31 Pro vs MacroStream USB FAQ
Which is smaller, the Sofirn SC31 Pro or the Streamlight MacroStream USB?
The Streamlight MacroStream USB is the shorter light: 114 mm (4.49 in) against 117.5 mm (4.63 in), a difference of 3.5 mm (3%). At its widest point the Streamlight MacroStream USB is 4.4 mm slimmer (21 vs 25.4 mm). Weights are published on different bases (Sofirn SC31 Pro: 59 g without battery; Streamlight MacroStream USB: 62 g listed), so they are not directly comparable.
Which is brighter, the Sofirn SC31 Pro or the Streamlight MacroStream USB?
The Sofirn SC31 Pro is rated brighter: 2,000 lm maximum vs 500 lm for the Streamlight MacroStream USB, 300% more.
Do the Sofirn SC31 Pro and Streamlight MacroStream USB use the same battery?
The Sofirn SC31 Pro runs on a removable 18650 battery; the Streamlight MacroStream USB runs on a built-in rechargeable battery. Only the Sofirn SC31 Pro lets you swap in a charged spare.
Compare Sofirn SC31 Pro with similar lights
Compare Streamlight MacroStream USB with similar lights
More
Sources
- Sofirn SC31 Pro: specs from manufacturer published specs as listed by sofirnlight.com. No verified price yet.
- Streamlight MacroStream USB: specs from manufacturer published specs as listed by batteryjunction.com. Price $71.20 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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