Olight Arkfeld Ultra vs Wurkkos FC11C size comparison
The Wurkkos FC11C is 3.8 mm (0.15 in) shorter than the Olight Arkfeld Ultra, with about the same max diameter/width. Weights are published on different bases (without battery vs with battery), so compare them with care.
The Wurkkos FC11C is 3.8 mm (0.15 in) shorter than the Olight Arkfeld Ultra, 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 Ultra Check price ↗ | Wurkkos FC11C Check price ↗ | |
| Length | 120 mm (4.72 in) | 116.2 mm (4.58 in)−3.8 mm |
| Head / width | 27 mm (1.06 in) | 27 mm (1.06 in)same |
| Thickness | 16 mm (0.63 in) | — |
| Weight | 119 g with battery | 65 g without battery |
| Battery | Built-in | 18650 |
| Max output | — | 1,200 lm |
| Throw | 103 m | — |
| Type | EDC | EDC |
| Price | $119.99 at olight.com, as of Nov 4, 2026 | $23.99 at flashlightgo.com, as of Nov 4, 2026 |
| Source | olight.com sourced Max output not shown in spec block | flashlightgo.com sourced Only head diameter listed |
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Arkfeld Ultra vs FC11C: how they differ
Size and weight
The Wurkkos FC11C is the shorter light: 116.2 mm (4.58 in) against 120 mm (4.72 in), a difference of 3.8 mm (3%). At their widest points they are about the same (27 vs 27 mm). Weights are published on different bases (Olight Arkfeld Ultra: 119 g with battery; Wurkkos FC11C: 65 g without battery), so they are not directly comparable.
Brightness and throw
The Wurkkos FC11C is rated at 1,200 lm; we have no published maximum for the Olight Arkfeld Ultra.
Battery
The Olight Arkfeld Ultra runs on a built-in rechargeable battery; the Wurkkos FC11C runs on a removable 18650 battery. Only the Wurkkos FC11C lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Olight Arkfeld Ultra was $119.99 at olight.com and the Wurkkos FC11C $23.99 at flashlightgo.com, so the Wurkkos FC11C cost $96.00 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 Ultra if you want a built-in battery with no separate cell to buy. Choose the Wurkkos FC11C if you want a shorter light (3.8 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 Ultra Check price ↗ Wurkkos FC11C
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Arkfeld Ultra vs FC11C FAQ
Which is smaller, the Olight Arkfeld Ultra or the Wurkkos FC11C?
The Wurkkos FC11C is the shorter light: 116.2 mm (4.58 in) against 120 mm (4.72 in), a difference of 3.8 mm (3%). At their widest points they are about the same (27 vs 27 mm). Weights are published on different bases (Olight Arkfeld Ultra: 119 g with battery; Wurkkos FC11C: 65 g without battery), so they are not directly comparable.
Which is cheaper, the Olight Arkfeld Ultra or the Wurkkos FC11C?
When we checked on Nov 4, 2026, the Olight Arkfeld Ultra was $119.99 at olight.com and the Wurkkos FC11C $23.99 at flashlightgo.com, so the Wurkkos FC11C cost $96.00 less. Prices change often, so check the current price before you buy.
Do the Olight Arkfeld Ultra and Wurkkos FC11C use the same battery?
The Olight Arkfeld Ultra runs on a built-in rechargeable battery; the Wurkkos FC11C runs on a removable 18650 battery. Only the Wurkkos FC11C lets you swap in a charged spare.
Compare Olight Arkfeld Ultra with similar lights
Compare Wurkkos FC11C with similar lights
More
Sources
- Olight Arkfeld Ultra: specs from Olight product page (manufacturer). Price $119.99 from olight.com, checked Nov 4, 2026; prices change often.
- Wurkkos FC11C: specs from manufacturer published specs as listed by flashlightgo.com. Price $23.99 from flashlightgo.com, checked Nov 4, 2026; prices change often.
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