Emisar D1K vs Wurkkos TS21 size comparison
The Wurkkos TS21 is 0.6 mm (0.02 in) shorter than the Emisar D1K, and 7 mm narrower at its widest point. It is 11 g lighter (without battery).
The Wurkkos TS21 is 0.6 mm (0.02 in) shorter than the Emisar D1K, and 7 mm narrower at its widest point. It is 11 g lighter (without battery).
Dimensions
| Emisar D1K Check price ↗ | Wurkkos TS21 Check price ↗ | |
| Length | 114 mm (4.49 in) | 113.4 mm (4.46 in)−0.6 mm |
| Head / width | 35 mm (1.38 in) | 28 mm (1.10 in)−7 mm |
| Body | 26.5 mm (1.04 in) | — |
| Weight | 89 g without battery | 78 g without battery−11 g |
| Battery | 21700 | 21700 |
| Max output | 1,200 lm | 3,500 lm |
| Throw | — | — |
| Type | EDC | EDC |
| Price | $39.95 at intl-outdoor.com, as of Nov 4, 2026 | not verified yet |
| Source | intl-outdoor.com sourced Pocket thrower; lumens for SFT-25 | wurkkos.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
D1K vs TS21: how they differ
Size and weight
The Wurkkos TS21 is the shorter light: 113.4 mm (4.46 in) against 114 mm (4.49 in), a difference of 0.6 mm (1%). At its widest point the Wurkkos TS21 is 7 mm slimmer (28 vs 35 mm). The Wurkkos TS21 is 11 g lighter (78 g vs 89 g, without battery).
Brightness and throw
The Wurkkos TS21 is rated brighter: 3,500 lm maximum vs 1,200 lm for the Emisar D1K, 192% more.
Battery
Both run on a removable 21700 battery, so spare cells work in either light.
Type
Both are EDC lights in our catalog with a tube body.
Which should you buy?
Choose the Wurkkos TS21 if you want a slimmer profile (7 mm narrower), less weight (11 g lighter) and more output (3,500 lm vs 1,200 lm). On the specs we track, the Wurkkos TS21 is ahead or level everywhere; the Emisar D1K 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 D1K Check price ↗ Wurkkos TS21
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
D1K vs TS21 FAQ
Which is smaller, the Emisar D1K or the Wurkkos TS21?
The Wurkkos TS21 is the shorter light: 113.4 mm (4.46 in) against 114 mm (4.49 in), a difference of 0.6 mm (1%). At its widest point the Wurkkos TS21 is 7 mm slimmer (28 vs 35 mm). The Wurkkos TS21 is 11 g lighter (78 g vs 89 g, without battery).
Which is brighter, the Emisar D1K or the Wurkkos TS21?
The Wurkkos TS21 is rated brighter: 3,500 lm maximum vs 1,200 lm for the Emisar D1K, 192% more.
Do the Emisar D1K and Wurkkos TS21 use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Emisar D1K with similar lights
Compare Wurkkos TS21 with similar lights
More
Sources
- Emisar D1K: specs from Emisar product page (manufacturer). Price $39.95 from intl-outdoor.com, checked Nov 4, 2026; prices change often.
- Wurkkos TS21: specs from Wurkkos product page (manufacturer). No verified price yet.
Found an error? Email liambuehlerbusiness@gmail.com and we will fix it.