Olight Arkfeld vs Sofirn SC18 size comparison
The Sofirn SC18 is 8.5 mm (0.33 in) shorter than the Olight Arkfeld, with about the same max diameter/width. Weights are published on different bases (without battery vs with battery), so compare them with care.
The Sofirn SC18 is 8.5 mm (0.33 in) shorter than the Olight Arkfeld, with about the same max diameter/width. Weights are published on different bases (without battery vs with battery), so compare them with care.
Dimensions
| Olight Arkfeld Check price ↗ | Sofirn SC18 Check price ↗ | |
| Length | 110 mm (4.33 in) | 101.5 mm (4.00 in)−8.5 mm |
| Head / width | 25 mm (0.98 in) | 24.7 mm (0.97 in)−0.3 mm |
| Thickness | 15 mm (0.59 in) | — |
| Weight | 87 g with battery | 55 g without battery |
| Battery | Built-in | 18650 |
| Max output | 1,000 lm | — |
| Throw | 101 m | — |
| Type | EDC | EDC |
| Price | $89.99 at olight.com, as of Nov 4, 2026 | from $19.99 at flashlightgo.com, as of Nov 4, 2026 |
| Source | olight.com sourced | flashlightgo.com sourced Only head diameter listed |
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Arkfeld vs SC18: how they differ
Size and weight
The Sofirn SC18 is the shorter light: 101.5 mm (4.00 in) against 110 mm (4.33 in), a difference of 8.5 mm (8%). At their widest points they are about the same (25 vs 24.7 mm). Weights are published on different bases (Olight Arkfeld: 87 g with battery; Sofirn SC18: 55 g without battery), so they are not directly comparable.
Brightness and throw
The Olight Arkfeld is rated at 1,000 lm; we have no published maximum for the Sofirn SC18.
Battery
The Olight Arkfeld runs on a built-in rechargeable battery; the Sofirn SC18 runs on a removable 18650 battery. Only the Sofirn SC18 lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Olight Arkfeld was $89.99 at olight.com and the Sofirn SC18 from $19.99 at flashlightgo.com, so the Sofirn SC18 cost $70.00 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 Olight Arkfeld if you want a built-in battery with no separate cell to buy. Choose the Sofirn SC18 if you want a shorter light (8.5 mm shorter) and a removable cell you can swap. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Olight Arkfeld Check price ↗ Sofirn SC18
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
Arkfeld vs SC18 FAQ
Which is smaller, the Olight Arkfeld or the Sofirn SC18?
The Sofirn SC18 is the shorter light: 101.5 mm (4.00 in) against 110 mm (4.33 in), a difference of 8.5 mm (8%). At their widest points they are about the same (25 vs 24.7 mm). Weights are published on different bases (Olight Arkfeld: 87 g with battery; Sofirn SC18: 55 g without battery), so they are not directly comparable.
Which is cheaper, the Olight Arkfeld or the Sofirn SC18?
When we checked on Nov 4, 2026, the Olight Arkfeld was $89.99 at olight.com and the Sofirn SC18 from $19.99 at flashlightgo.com, so the Sofirn SC18 cost $70.00 less. Prices change often, so check the current price before you buy.
Do the Olight Arkfeld and Sofirn SC18 use the same battery?
The Olight Arkfeld runs on a built-in rechargeable battery; the Sofirn SC18 runs on a removable 18650 battery. Only the Sofirn SC18 lets you swap in a charged spare.
Compare Olight Arkfeld with similar lights
Compare Sofirn SC18 with similar lights
More
Sources
- Olight Arkfeld: specs from Olight product page (manufacturer). Price $89.99 from olight.com, checked Nov 4, 2026; prices change often.
- Sofirn SC18: specs from manufacturer published specs as listed by flashlightgo.com. Price from $19.99 from flashlightgo.com, checked Nov 4, 2026; prices change often.
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