Emisar D4K vs ThruNite TN12 V6 size comparison
The ThruNite TN12 V6 is 31 mm (1.22 in) longer than the Emisar D4K, and 1 mm narrower at its widest point. Weights are published on different bases (listed (battery unspecified) vs without battery), so compare them with care.
The ThruNite TN12 V6 is 31 mm (1.22 in) longer than the Emisar D4K, and 1 mm narrower at its widest point. Weights are published on different bases (listed (battery unspecified) vs without battery), so compare them with care.
Dimensions
| Emisar D4K Check price ↗ | ThruNite TN12 V6 Check price ↗ | |
| Length | 103 mm (4.06 in) | 134 mm (5.28 in)+31 mm |
| Head / width | 28 mm (1.10 in) | 27 mm (1.06 in)−1 mm |
| Body | 26.5 mm (1.04 in) | 24 mm (0.94 in)−2.5 mm |
| Weight | 58 g without battery | 88 g listed (battery unspecified) |
| Battery | 21700 | 18650 |
| Max output | — | 1,950 lm |
| Throw | — | — |
| Type | EDC | EDC |
| Price | $39.69 at intl-outdoor.com, as of Nov 4, 2026 | $39.99 at batteryjunction.com, as of Nov 4, 2026 |
| Source | intl-outdoor.com sourced Output depends on LED option | batteryjunction.com sourced |
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D4K vs TN12 V6: how they differ
Size and weight
The Emisar D4K is the shorter light: 103 mm (4.06 in) against 134 mm (5.28 in), a difference of 31 mm (23%). At its widest point the ThruNite TN12 V6 is 1 mm slimmer (27 vs 28 mm). Weights are published on different bases (Emisar D4K: 58 g without battery; ThruNite TN12 V6: 88 g listed (battery unspecified)), so they are not directly comparable.
Brightness and throw
The ThruNite TN12 V6 is rated at 1,950 lm; we have no published maximum for the Emisar D4K. Output for the Emisar D4K depends on the LED option chosen.
Battery
The Emisar D4K runs on a removable 21700 battery; the ThruNite TN12 V6 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 Emisar D4K was $39.69 at intl-outdoor.com and the ThruNite TN12 V6 $39.99 at batteryjunction.com. 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 Emisar D4K if you want a shorter light (31 mm shorter). On the specs we track, the Emisar D4K is ahead or level everywhere; the ThruNite TN12 V6 makes sense mainly if its price, interface or a feature we don't track suits you better. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Emisar D4K Check price ↗ ThruNite TN12 V6
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
D4K vs TN12 V6 FAQ
Which is smaller, the Emisar D4K or the ThruNite TN12 V6?
The Emisar D4K is the shorter light: 103 mm (4.06 in) against 134 mm (5.28 in), a difference of 31 mm (23%). At its widest point the ThruNite TN12 V6 is 1 mm slimmer (27 vs 28 mm). Weights are published on different bases (Emisar D4K: 58 g without battery; ThruNite TN12 V6: 88 g listed (battery unspecified)), so they are not directly comparable.
Which is cheaper, the Emisar D4K or the ThruNite TN12 V6?
When we checked on Nov 4, 2026, the Emisar D4K was $39.69 at intl-outdoor.com and the ThruNite TN12 V6 $39.99 at batteryjunction.com. Prices change often, so check the current price before you buy.
Do the Emisar D4K and ThruNite TN12 V6 use the same battery?
The Emisar D4K runs on a removable 21700 battery; the ThruNite TN12 V6 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 Emisar D4K with similar lights
Compare ThruNite TN12 V6 with similar lights
More
Sources
- Emisar D4K: specs from Emisar product page (manufacturer). Drawing: outline from published specs. Price $39.69 from intl-outdoor.com, checked Nov 4, 2026; prices change often.
- ThruNite TN12 V6: specs from manufacturer published specs as listed by batteryjunction.com. Drawing: outline from published specs. Price $39.99 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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