Olight Seeker 4 Pro vs Wurkkos FC12C size comparison
The Wurkkos FC12C is 3.5 mm (0.14 in) longer than the Olight Seeker 4 Pro, and 11 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 3.5 mm (0.14 in) longer than the Olight Seeker 4 Pro, and 11 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 Seeker 4 Pro Check price ↗ | Wurkkos FC12C Check price ↗ | |
| Length | 133 mm (5.24 in) | 136.5 mm (5.37 in)+3.5 mm |
| Head / width | 35 mm (1.38 in) | 24 mm (0.94 in)−11 mm |
| Body | 28 mm (1.10 in) | — |
| Weight | 205 g with battery | 85 g listed (battery unspecified) |
| Battery | 21700 | 21700 |
| Max output | 4,600 lm | — |
| Throw | 260 m | — |
| Type | EDC | EDC |
| Price | $139.99 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 |
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
Seeker 4 Pro vs FC12C: how they differ
Size and weight
The Olight Seeker 4 Pro is the shorter light: 133 mm (5.24 in) against 136.5 mm (5.37 in), a difference of 3.5 mm (3%). At its widest point the Wurkkos FC12C is 11 mm slimmer (24 vs 35 mm). Weights are published on different bases (Olight Seeker 4 Pro: 205 g with battery; Wurkkos FC12C: 85 g listed (battery unspecified)), so they are not directly comparable.
Brightness and throw
The Olight Seeker 4 Pro is rated at 4,600 lm; we have no published maximum for the Wurkkos FC12C.
Battery
Both run on a removable 21700 battery, so spare cells work in either light.
Price
When we checked on Nov 4, 2026, the Olight Seeker 4 Pro was $139.99 at olight.com and the Wurkkos FC12C $35.99 at flashlightgo.com, so the Wurkkos FC12C cost $104.00 less. Prices change often, so check the current price before you buy.
Type
Both are EDC lights in our catalog with a tube body.
Which should you buy?
Choose the Olight Seeker 4 Pro if you want a shorter light (3.5 mm shorter). Choose the Wurkkos FC12C if you want a slimmer profile (11 mm narrower). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Olight Seeker 4 Pro Check price ↗ Wurkkos FC12C
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
Seeker 4 Pro vs FC12C FAQ
Which is smaller, the Olight Seeker 4 Pro or the Wurkkos FC12C?
The Olight Seeker 4 Pro is the shorter light: 133 mm (5.24 in) against 136.5 mm (5.37 in), a difference of 3.5 mm (3%). At its widest point the Wurkkos FC12C is 11 mm slimmer (24 vs 35 mm). Weights are published on different bases (Olight Seeker 4 Pro: 205 g with battery; Wurkkos FC12C: 85 g listed (battery unspecified)), so they are not directly comparable.
Which is cheaper, the Olight Seeker 4 Pro or the Wurkkos FC12C?
When we checked on Nov 4, 2026, the Olight Seeker 4 Pro was $139.99 at olight.com and the Wurkkos FC12C $35.99 at flashlightgo.com, so the Wurkkos FC12C cost $104.00 less. Prices change often, so check the current price before you buy.
Do the Olight Seeker 4 Pro and Wurkkos FC12C use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Olight Seeker 4 Pro with similar lights
Compare Wurkkos FC12C with similar lights
More
Sources
- Olight Seeker 4 Pro: specs from Olight product page (manufacturer). Price $139.99 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.
Found an error? Email [email protected] and we will fix it.