Emisar D1K vs Fenix LD36R size comparison
The Fenix LD36R is 25.6 mm (1.01 in) longer than the Emisar D1K, and 5 mm wider at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
The Fenix LD36R is 25.6 mm (1.01 in) longer than the Emisar D1K, and 5 mm wider at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
Dimensions
| Emisar D1K Check price ↗ | Fenix LD36R Check price ↗ | |
| Length | 114 mm (4.49 in) | 139.6 mm (5.50 in)+25.6 mm |
| Head / width | 35 mm (1.38 in) | 40 mm (1.57 in)+5 mm |
| Body | 26.5 mm (1.04 in) | 26.5 mm (1.04 in)same |
| Weight | 89 g without battery | 231 g with battery |
| Battery | 21700 | 21700 |
| Max output | 1,200 lm | 3,600 lm |
| Throw | — | 385 m |
| Type | EDC | EDC |
| Price | $39.95 at intl-outdoor.com, as of Nov 4, 2026 | from $114.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | intl-outdoor.com sourced Pocket thrower; lumens for SFT-25 | fenixlighting.com sourced |
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D1K vs LD36R: how they differ
Size and weight
The Emisar D1K is the shorter light: 114 mm (4.49 in) against 139.6 mm (5.50 in), a difference of 25.6 mm (18%). At its widest point the Emisar D1K is 5 mm slimmer (35 vs 40 mm). Weights are published on different bases (Emisar D1K: 89 g without battery; Fenix LD36R: 231 g with battery), so they are not directly comparable.
Brightness and throw
The Fenix LD36R is rated brighter: 3,600 lm maximum vs 1,200 lm for the Emisar D1K, 200% more.
Battery
Both run on a removable 21700 battery, so spare cells work in either light.
Price
When we checked on Nov 4, 2026, the Emisar D1K was $39.95 at intl-outdoor.com and the Fenix LD36R from $114.95 at fenixlighting.com, so the Emisar D1K cost $75.00 less. 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 D1K if you want a shorter light (25.6 mm shorter) and a slimmer profile (5 mm narrower). Choose the Fenix LD36R if you want more output (3,600 lm vs 1,200 lm). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Emisar D1K Check price ↗ Fenix LD36R
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
D1K vs LD36R FAQ
Which is smaller, the Emisar D1K or the Fenix LD36R?
The Emisar D1K is the shorter light: 114 mm (4.49 in) against 139.6 mm (5.50 in), a difference of 25.6 mm (18%). At its widest point the Emisar D1K is 5 mm slimmer (35 vs 40 mm). Weights are published on different bases (Emisar D1K: 89 g without battery; Fenix LD36R: 231 g with battery), so they are not directly comparable.
Which is brighter, the Emisar D1K or the Fenix LD36R?
The Fenix LD36R is rated brighter: 3,600 lm maximum vs 1,200 lm for the Emisar D1K, 200% more.
Which is cheaper, the Emisar D1K or the Fenix LD36R?
When we checked on Nov 4, 2026, the Emisar D1K was $39.95 at intl-outdoor.com and the Fenix LD36R from $114.95 at fenixlighting.com, so the Emisar D1K cost $75.00 less. Prices change often, so check the current price before you buy.
Do the Emisar D1K and Fenix LD36R 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 Fenix LD36R 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.
- Fenix LD36R: specs from Fenix product page (manufacturer). Price from $114.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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