Nitecore E4K vs Wurkkos FC11C size comparison
The Wurkkos FC11C is 0.8 mm (0.03 in) shorter than the Nitecore E4K, and 2 mm narrower at its widest point. Weights are published on different bases (without battery vs listed), so compare them with care.
The Wurkkos FC11C is 0.8 mm (0.03 in) shorter than the Nitecore E4K, and 2 mm narrower at its widest point. Weights are published on different bases (without battery vs listed), so compare them with care.
Dimensions
| Nitecore E4K Check price ↗ | Wurkkos FC11C Check price ↗ | |
| Length | 117 mm (4.61 in) | 116.2 mm (4.58 in)−0.8 mm |
| Head / width | 29 mm (1.14 in) | 27 mm (1.06 in)−2 mm |
| Body | 26 mm (1.02 in) | — |
| Weight | 80 g listed | 65 g without battery |
| Battery | 21700 | 18650 |
| Max output | 4,400 lm | 1,200 lm |
| Throw | 211 m | — |
| Type | EDC | EDC |
| Price | not verified yet | $23.99 at flashlightgo.com, as of Nov 4, 2026 |
| Source | batteryjunction.com sourced | flashlightgo.com sourced Only head diameter listed |
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E4K vs FC11C: how they differ
Size and weight
The Wurkkos FC11C is the shorter light: 116.2 mm (4.58 in) against 117 mm (4.61 in), a difference of 0.8 mm (1%). At its widest point the Wurkkos FC11C is 2 mm slimmer (27 vs 29 mm). Weights are published on different bases (Nitecore E4K: 80 g listed; Wurkkos FC11C: 65 g without battery), so they are not directly comparable.
Brightness and throw
The Nitecore E4K is rated brighter: 4,400 lm maximum vs 1,200 lm for the Wurkkos FC11C, 267% more.
Battery
The Nitecore E4K 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).
Type
Both are EDC lights in our catalog with a tube body.
Which should you buy?
Choose the Nitecore E4K if you want more output (4,400 lm vs 1,200 lm). Choose the Wurkkos FC11C if you want a slimmer profile (2 mm narrower). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Nitecore E4K Check price ↗ Wurkkos FC11C
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
E4K vs FC11C FAQ
Which is smaller, the Nitecore E4K or the Wurkkos FC11C?
The Wurkkos FC11C is the shorter light: 116.2 mm (4.58 in) against 117 mm (4.61 in), a difference of 0.8 mm (1%). At its widest point the Wurkkos FC11C is 2 mm slimmer (27 vs 29 mm). Weights are published on different bases (Nitecore E4K: 80 g listed; Wurkkos FC11C: 65 g without battery), so they are not directly comparable.
Which is brighter, the Nitecore E4K or the Wurkkos FC11C?
The Nitecore E4K is rated brighter: 4,400 lm maximum vs 1,200 lm for the Wurkkos FC11C, 267% more.
Do the Nitecore E4K and Wurkkos FC11C use the same battery?
The Nitecore E4K 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 Nitecore E4K with similar lights
Compare Wurkkos FC11C with similar lights
More
Sources
- Nitecore E4K: specs from manufacturer published specs as listed by batteryjunction.com. No verified price yet.
- 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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