Nitecore E4K vs ThruNite TC15 V3 size comparison
The ThruNite TC15 V3 is 5 mm (0.20 in) longer than the Nitecore E4K, and 2 mm narrower at its widest point. Weights are published on different bases (listed vs listed), so compare them with care.
The ThruNite TC15 V3 is 5 mm (0.20 in) longer than the Nitecore E4K, and 2 mm narrower at its widest point. Weights are published on different bases (listed vs listed), so compare them with care.
Dimensions
| Nitecore E4K Check price ↗ | ThruNite TC15 V3 Check price ↗ | |
| Length | 117 mm (4.61 in) | 122 mm (4.80 in)+5 mm |
| Head / width | 29 mm (1.14 in) | 27 mm (1.06 in)−2 mm |
| Body | 26 mm (1.02 in) | 23 mm (0.91 in)−3 mm |
| Weight | 80 g listed | 74 g listed |
| Battery | 21700 | 18650 |
| Max output | 4,400 lm | 2,403 lm |
| Throw | 211 m | 223 m |
| Type | EDC | EDC |
| Price | not verified yet | $59.99 at batteryjunction.com, as of Nov 4, 2026 |
| Source | batteryjunction.com sourced | batteryjunction.com sourced Retailer lists W 27 x H 23 mm |
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
E4K vs TC15 V3: how they differ
Size and weight
The Nitecore E4K is the shorter light: 117 mm (4.61 in) against 122 mm (4.80 in), a difference of 5 mm (4%). At its widest point the ThruNite TC15 V3 is 2 mm slimmer (27 vs 29 mm). Weights are published on different bases (Nitecore E4K: 80 g listed; ThruNite TC15 V3: 74 g listed), so they are not directly comparable.
Brightness and throw
The Nitecore E4K is rated brighter: 4,400 lm maximum vs 2,403 lm for the ThruNite TC15 V3, 83% more. For beam distance the ThruNite TC15 V3 reaches further: 223 m vs 211 m rated throw (6% more).
Battery
The Nitecore E4K runs on a removable 21700 battery; the ThruNite TC15 V3 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 a shorter light (5 mm shorter) and more output (4,400 lm vs 2,403 lm). Choose the ThruNite TC15 V3 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 ↗ ThruNite TC15 V3
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
E4K vs TC15 V3 FAQ
Which is smaller, the Nitecore E4K or the ThruNite TC15 V3?
The Nitecore E4K is the shorter light: 117 mm (4.61 in) against 122 mm (4.80 in), a difference of 5 mm (4%). At its widest point the ThruNite TC15 V3 is 2 mm slimmer (27 vs 29 mm). Weights are published on different bases (Nitecore E4K: 80 g listed; ThruNite TC15 V3: 74 g listed), so they are not directly comparable.
Which is brighter, the Nitecore E4K or the ThruNite TC15 V3?
The Nitecore E4K is rated brighter: 4,400 lm maximum vs 2,403 lm for the ThruNite TC15 V3, 83% more. For beam distance the ThruNite TC15 V3 reaches further: 223 m vs 211 m rated throw (6% more).
Do the Nitecore E4K and ThruNite TC15 V3 use the same battery?
The Nitecore E4K runs on a removable 21700 battery; the ThruNite TC15 V3 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 ThruNite TC15 V3 with similar lights
More
Sources
- Nitecore E4K: specs from manufacturer published specs as listed by batteryjunction.com. No verified price yet.
- ThruNite TC15 V3: specs from manufacturer published specs as listed by batteryjunction.com. Price $59.99 from batteryjunction.com, checked Nov 4, 2026; prices change often.
Found an error? Email [email protected] and we will fix it.