Sofirn SC18 vs Streamlight Wedge XT size comparison
The Streamlight Wedge XT is 6.5 mm (0.26 in) longer than the Sofirn SC18, with about the same max diameter/width. Weights are published on different bases (with battery vs without battery), so compare them with care.
The Streamlight Wedge XT is 6.5 mm (0.26 in) longer than the Sofirn SC18, with about the same max diameter/width. Weights are published on different bases (with battery vs without battery), so compare them with care.
Dimensions
| Sofirn SC18 Check price ↗ | Streamlight Wedge XT Check price ↗ | |
| Length | 101.5 mm (4.00 in) | 108 mm (4.25 in)+6.5 mm |
| Head / width | 24.7 mm (0.97 in) | 25 mm (0.98 in)+0.3 mm |
| Thickness | — | 15 mm (0.59 in) |
| Weight | 55 g without battery | 74 g with battery |
| Battery | 18650 | Built-in |
| Max output | — | 500 lm |
| Throw | — | — |
| Type | EDC | EDC |
| Price | from $19.99 at flashlightgo.com, as of Nov 4, 2026 | from $109.10 at batteryjunction.com, as of Nov 4, 2026 |
| Source | flashlightgo.com sourced Only head diameter listed | batteryjunction.com sourced Width 25 x height 15 mm |
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SC18 vs Wedge XT: how they differ
Size and weight
The Sofirn SC18 is the shorter light: 101.5 mm (4.00 in) against 108 mm (4.25 in), a difference of 6.5 mm (6%). At their widest points they are about the same (24.7 vs 25 mm). Weights are published on different bases (Sofirn SC18: 55 g without battery; Streamlight Wedge XT: 74 g with battery), so they are not directly comparable.
Brightness and throw
The Streamlight Wedge XT is rated at 500 lm; we have no published maximum for the Sofirn SC18.
Battery
The Sofirn SC18 runs on a removable 18650 battery; the Streamlight Wedge XT runs on a built-in rechargeable battery. Only the Sofirn SC18 lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Sofirn SC18 was from $19.99 at flashlightgo.com and the Streamlight Wedge XT from $109.10 at batteryjunction.com, so the Sofirn SC18 cost $89.11 less. Prices change often, so check the current price before you buy.
Type
Both are EDC lights in our catalog.
Which should you buy?
Choose the Sofirn SC18 if you want a shorter light (6.5 mm shorter) and a removable cell you can swap. Choose the Streamlight Wedge XT if you want 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 SC18 Check price ↗ Streamlight Wedge XT
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
SC18 vs Wedge XT FAQ
Which is smaller, the Sofirn SC18 or the Streamlight Wedge XT?
The Sofirn SC18 is the shorter light: 101.5 mm (4.00 in) against 108 mm (4.25 in), a difference of 6.5 mm (6%). At their widest points they are about the same (24.7 vs 25 mm). Weights are published on different bases (Sofirn SC18: 55 g without battery; Streamlight Wedge XT: 74 g with battery), so they are not directly comparable.
Which is cheaper, the Sofirn SC18 or the Streamlight Wedge XT?
When we checked on Nov 4, 2026, the Sofirn SC18 was from $19.99 at flashlightgo.com and the Streamlight Wedge XT from $109.10 at batteryjunction.com, so the Sofirn SC18 cost $89.11 less. Prices change often, so check the current price before you buy.
Do the Sofirn SC18 and Streamlight Wedge XT use the same battery?
The Sofirn SC18 runs on a removable 18650 battery; the Streamlight Wedge XT runs on a built-in rechargeable battery. Only the Sofirn SC18 lets you swap in a charged spare.
Compare Sofirn SC18 with similar lights
Compare Streamlight Wedge XT with similar lights
More
Sources
- Sofirn SC18: specs from manufacturer published specs as listed by flashlightgo.com. Drawing: shape measured from manufacturer photo (flashlightgo.com), scaled to the published length and diameter. Price from $19.99 from flashlightgo.com, checked Nov 4, 2026; prices change often.
- Streamlight Wedge XT: 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 from $109.10 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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