Olight Seeker 3 vs Wurkkos FC11C size comparison
The Wurkkos FC11C is 11.8 mm (0.46 in) shorter than the Olight Seeker 3, and 8 mm narrower at its widest point. Weights are published on different bases (without battery vs with battery), so compare them with care.
The Wurkkos FC11C is 11.8 mm (0.46 in) shorter than the Olight Seeker 3, and 8 mm narrower at its widest point. Weights are published on different bases (without battery vs with battery), so compare them with care.
Dimensions
| Olight Seeker 3 Check price ↗ | Wurkkos FC11C Check price ↗ | |
| Length | 128 mm (5.04 in) | 116.2 mm (4.58 in)−11.8 mm |
| Head / width | 35 mm (1.38 in) | 27 mm (1.06 in)−8 mm |
| Body | 27.5 mm (1.08 in) | — |
| Weight | 184 g with battery | 65 g without battery |
| Battery | 21700 | 18650 |
| Max output | 3,500 lm | 1,200 lm |
| Throw | 220 m | — |
| Type | EDC | EDC |
| Price | $119.95 at olight.com, as of Nov 4, 2026 | $23.99 at flashlightgo.com, as of Nov 4, 2026 |
| Source | olight.com sourced | flashlightgo.com sourced Only head diameter listed |
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Seeker 3 vs FC11C: how they differ
Size and weight
The Wurkkos FC11C is the shorter light: 116.2 mm (4.58 in) against 128 mm (5.04 in), a difference of 11.8 mm (9%). At its widest point the Wurkkos FC11C is 8 mm slimmer (27 vs 35 mm). Weights are published on different bases (Olight Seeker 3: 184 g with battery; Wurkkos FC11C: 65 g without battery), so they are not directly comparable.
Brightness and throw
The Olight Seeker 3 is rated brighter: 3,500 lm maximum vs 1,200 lm for the Wurkkos FC11C, 192% more.
Battery
The Olight Seeker 3 runs on a removable 21700 battery; the Wurkkos FC11C runs on a removable 18650 battery. For scale, a 21700 cell is about 21 × 70 mm and a 18650 about 18 × 65 mm (nominal).
Price
When we checked on Nov 4, 2026, the Olight Seeker 3 was $119.95 at olight.com and the Wurkkos FC11C $23.99 at flashlightgo.com, so the Wurkkos FC11C cost $95.96 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 3 if you want more output (3,500 lm vs 1,200 lm). Choose the Wurkkos FC11C if you want a shorter light (11.8 mm shorter) and a slimmer profile (8 mm narrower). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Olight Seeker 3 Check price ↗ Wurkkos FC11C
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Seeker 3 vs FC11C FAQ
Which is smaller, the Olight Seeker 3 or the Wurkkos FC11C?
The Wurkkos FC11C is the shorter light: 116.2 mm (4.58 in) against 128 mm (5.04 in), a difference of 11.8 mm (9%). At its widest point the Wurkkos FC11C is 8 mm slimmer (27 vs 35 mm). Weights are published on different bases (Olight Seeker 3: 184 g with battery; Wurkkos FC11C: 65 g without battery), so they are not directly comparable.
Which is brighter, the Olight Seeker 3 or the Wurkkos FC11C?
The Olight Seeker 3 is rated brighter: 3,500 lm maximum vs 1,200 lm for the Wurkkos FC11C, 192% more.
Which is cheaper, the Olight Seeker 3 or the Wurkkos FC11C?
When we checked on Nov 4, 2026, the Olight Seeker 3 was $119.95 at olight.com and the Wurkkos FC11C $23.99 at flashlightgo.com, so the Wurkkos FC11C cost $95.96 less. Prices change often, so check the current price before you buy.
Do the Olight Seeker 3 and Wurkkos FC11C use the same battery?
The Olight Seeker 3 runs on a removable 21700 battery; the Wurkkos FC11C runs on a removable 18650 battery. For scale, a 21700 cell is about 21 × 70 mm and a 18650 about 18 × 65 mm (nominal).
Compare Olight Seeker 3 with similar lights
Compare Wurkkos FC11C with similar lights
More
Sources
- Olight Seeker 3: specs from Olight product page (manufacturer). Price $119.95 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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