Olight ArkTac vs Wurkkos FC12C size comparison
The Wurkkos FC12C is 1 mm (0.04 in) longer than the Olight ArkTac, and 5 mm narrower at its widest point. Weights are published on different bases (listed (battery unspecified) vs with battery), so compare them with care.
The Wurkkos FC12C is 1 mm (0.04 in) longer than the Olight ArkTac, and 5 mm narrower at its widest point. Weights are published on different bases (listed (battery unspecified) vs with battery), so compare them with care.
Dimensions
| Olight ArkTac Check price ↗ | Wurkkos FC12C Check price ↗ | |
| Length | 135.5 mm (5.33 in) | 136.5 mm (5.37 in)+1 mm |
| Head / width | 29 mm (1.14 in) | 24 mm (0.94 in)−5 mm |
| Thickness | 17 mm (0.67 in) | — |
| Weight | 136 g with battery | 85 g listed (battery unspecified) |
| Battery | Built-in | 21700 |
| Max output | 1,700 lm | — |
| Throw | 205 m | — |
| Type | EDC | EDC |
| Price | $119.99 at olight.com, as of Nov 4, 2026 | $35.99 at flashlightgo.com, as of Nov 4, 2026 |
| Source | olight.com sourced | flashlightgo.com sourced Only head diameter listed |
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ArkTac vs FC12C: how they differ
Size and weight
The Olight ArkTac is the shorter light: 135.5 mm (5.33 in) against 136.5 mm (5.37 in), a difference of 1 mm (1%). At its widest point the Wurkkos FC12C is 5 mm slimmer (24 vs 29 mm). Weights are published on different bases (Olight ArkTac: 136 g with battery; Wurkkos FC12C: 85 g listed (battery unspecified)), so they are not directly comparable.
Brightness and throw
The Olight ArkTac is rated at 1,700 lm; we have no published maximum for the Wurkkos FC12C.
Battery
The Olight ArkTac runs on a built-in rechargeable battery; the Wurkkos FC12C runs on a removable 21700 battery. Only the Wurkkos FC12C lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Olight ArkTac was $119.99 at olight.com and the Wurkkos FC12C $35.99 at flashlightgo.com, so the Wurkkos FC12C cost $84.00 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 ArkTac if you want a built-in battery with no separate cell to buy. Choose the Wurkkos FC12C if you want a slimmer profile (5 mm narrower) 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 ArkTac Check price ↗ Wurkkos FC12C
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
ArkTac vs FC12C FAQ
Which is smaller, the Olight ArkTac or the Wurkkos FC12C?
The Olight ArkTac is the shorter light: 135.5 mm (5.33 in) against 136.5 mm (5.37 in), a difference of 1 mm (1%). At its widest point the Wurkkos FC12C is 5 mm slimmer (24 vs 29 mm). Weights are published on different bases (Olight ArkTac: 136 g with battery; Wurkkos FC12C: 85 g listed (battery unspecified)), so they are not directly comparable.
Which is cheaper, the Olight ArkTac or the Wurkkos FC12C?
When we checked on Nov 4, 2026, the Olight ArkTac was $119.99 at olight.com and the Wurkkos FC12C $35.99 at flashlightgo.com, so the Wurkkos FC12C cost $84.00 less. Prices change often, so check the current price before you buy.
Do the Olight ArkTac and Wurkkos FC12C use the same battery?
The Olight ArkTac runs on a built-in rechargeable battery; the Wurkkos FC12C runs on a removable 21700 battery. Only the Wurkkos FC12C lets you swap in a charged spare.
Compare Olight ArkTac with similar lights
Compare Wurkkos FC12C with similar lights
More
Sources
- Olight ArkTac: specs from Olight product page (manufacturer). Price $119.99 from olight.com, checked Nov 4, 2026; prices change often.
- Wurkkos FC12C: specs from manufacturer published specs as listed by flashlightgo.com. Price $35.99 from flashlightgo.com, checked Nov 4, 2026; prices change often.
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