Emisar D1K vs Nitecore EDC17 size comparison
The Nitecore EDC17 is 9 mm (0.35 in) longer than the Emisar D1K, and 3 mm narrower at its widest point. Weights are published on different bases (listed vs without battery), so compare them with care.
The Nitecore EDC17 is 9 mm (0.35 in) longer than the Emisar D1K, and 3 mm narrower at its widest point. Weights are published on different bases (listed vs without battery), so compare them with care.
Dimensions
| Emisar D1K Check price ↗ | Nitecore EDC17 Check price ↗ | |
| Length | 114 mm (4.49 in) | 123 mm (4.84 in)+9 mm |
| Head / width | 35 mm (1.38 in) | 32 mm (1.26 in)−3 mm |
| Body | 26.5 mm (1.04 in) | — |
| Thickness | — | 16 mm (0.63 in) |
| Weight | 89 g without battery | 106 g listed |
| Battery | 21700 | Built-in |
| Max output | 1,200 lm | 1,500 lm |
| Throw | — | 230 m |
| Type | EDC | EDC |
| Price | $39.95 at intl-outdoor.com, as of Nov 4, 2026 | $94.95 at batteryjunction.com, as of Nov 4, 2026 |
| Source | intl-outdoor.com sourced Pocket thrower; lumens for SFT-25 | batteryjunction.com sourced |
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D1K vs EDC17: how they differ
Size and weight
The Emisar D1K is the shorter light: 114 mm (4.49 in) against 123 mm (4.84 in), a difference of 9 mm (7%). At its widest point the Nitecore EDC17 is 3 mm slimmer (32 vs 35 mm). Weights are published on different bases (Emisar D1K: 89 g without battery; Nitecore EDC17: 106 g listed), so they are not directly comparable.
Brightness and throw
The Nitecore EDC17 is rated brighter: 1,500 lm maximum vs 1,200 lm for the Emisar D1K, 25% more.
Battery
The Emisar D1K runs on a removable 21700 battery; the Nitecore EDC17 runs on a built-in rechargeable battery. Only the Emisar D1K lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Emisar D1K was $39.95 at intl-outdoor.com and the Nitecore EDC17 $94.95 at batteryjunction.com, so the Emisar D1K cost $55.00 less. Prices change often, so check the current price before you buy.
Type
Both are EDC lights in our catalog.
Which should you buy?
Choose the Emisar D1K if you want a shorter light (9 mm shorter) and a removable cell you can swap. Choose the Nitecore EDC17 if you want a slimmer profile (3 mm narrower), more output (1,500 lm vs 1,200 lm) and a built-in battery with no separate cell to buy. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Emisar D1K Check price ↗ Nitecore EDC17
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
D1K vs EDC17 FAQ
Which is smaller, the Emisar D1K or the Nitecore EDC17?
The Emisar D1K is the shorter light: 114 mm (4.49 in) against 123 mm (4.84 in), a difference of 9 mm (7%). At its widest point the Nitecore EDC17 is 3 mm slimmer (32 vs 35 mm). Weights are published on different bases (Emisar D1K: 89 g without battery; Nitecore EDC17: 106 g listed), so they are not directly comparable.
Which is brighter, the Emisar D1K or the Nitecore EDC17?
The Nitecore EDC17 is rated brighter: 1,500 lm maximum vs 1,200 lm for the Emisar D1K, 25% more.
Which is cheaper, the Emisar D1K or the Nitecore EDC17?
When we checked on Nov 4, 2026, the Emisar D1K was $39.95 at intl-outdoor.com and the Nitecore EDC17 $94.95 at batteryjunction.com, so the Emisar D1K cost $55.00 less. Prices change often, so check the current price before you buy.
Do the Emisar D1K and Nitecore EDC17 use the same battery?
The Emisar D1K runs on a removable 21700 battery; the Nitecore EDC17 runs on a built-in rechargeable battery. Only the Emisar D1K lets you swap in a charged spare.
Compare Emisar D1K with similar lights
Compare Nitecore EDC17 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.
- Nitecore EDC17: specs from manufacturer published specs as listed by batteryjunction.com. Price $94.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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