Convoy M21H vs Emisar D1K size comparison
The Emisar D1K is 16.8 mm (0.66 in) shorter than the Convoy M21H, and 5 mm narrower at its widest point.
The Emisar D1K is 16.8 mm (0.66 in) shorter than the Convoy M21H, and 5 mm narrower at its widest point.
Dimensions
| Convoy M21H Check price ↗ | Emisar D1K Check price ↗ | |
| Length | 130.8 mm (5.15 in) | 114 mm (4.49 in)−16.8 mm |
| Head / width | 40 mm (1.57 in) | 35 mm (1.38 in)−5 mm |
| Body | 27 mm (1.06 in) | 26.5 mm (1.04 in)−0.5 mm |
| Tail | 28.5 mm (1.12 in) | — |
| Weight | — | 89 g without battery |
| Battery | 21700 | 21700 |
| Max output | — | 1,200 lm |
| Throw | — | — |
| Type | EDC | EDC |
| Price | from $44.95 at nealsgadgets.com, as of Nov 4, 2026 | $39.95 at intl-outdoor.com, as of Nov 4, 2026 |
| Source | nealsgadgets.com sourced | intl-outdoor.com sourced Pocket thrower; lumens for SFT-25 |
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M21H vs D1K: how they differ
Size and weight
The Emisar D1K is the shorter light: 114 mm (4.49 in) against 130.8 mm (5.15 in), a difference of 16.8 mm (13%). At its widest point the Emisar D1K is 5 mm slimmer (35 vs 40 mm).
Brightness and throw
The Emisar D1K is rated at 1,200 lm; we have no published maximum for the Convoy M21H.
Battery
Both run on a removable 21700 battery, so spare cells work in either light.
Price
When we checked on Nov 4, 2026, the Convoy M21H was from $44.95 at nealsgadgets.com and the Emisar D1K $39.95 at intl-outdoor.com, so the Emisar D1K cost $5.00 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 (16.8 mm shorter) and a slimmer profile (5 mm narrower). On the specs we track, the Emisar D1K is ahead or level everywhere; the Convoy M21H 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 ↗ Convoy M21H Check price ↗ Emisar D1K
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M21H vs D1K FAQ
Which is smaller, the Convoy M21H or the Emisar D1K?
The Emisar D1K is the shorter light: 114 mm (4.49 in) against 130.8 mm (5.15 in), a difference of 16.8 mm (13%). At its widest point the Emisar D1K is 5 mm slimmer (35 vs 40 mm).
Which is cheaper, the Convoy M21H or the Emisar D1K?
When we checked on Nov 4, 2026, the Convoy M21H was from $44.95 at nealsgadgets.com and the Emisar D1K $39.95 at intl-outdoor.com, so the Emisar D1K cost $5.00 less. Prices change often, so check the current price before you buy.
Do the Convoy M21H and Emisar D1K use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Convoy M21H with similar lights
Compare Emisar D1K with similar lights
More
Sources
- Convoy M21H: specs from manufacturer published specs as listed by nealsgadgets.com. Drawing: outline from published specs. Price from $44.95 from nealsgadgets.com, checked Nov 4, 2026; prices change often.
- Emisar D1K: specs from Emisar product page (manufacturer). Drawing: outline from published specs. Price $39.95 from intl-outdoor.com, checked Nov 4, 2026; prices change often.
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