Convoy M21B vs SureFire EDCL2-T size comparison
The SureFire EDCL2-T is 6.8 mm (0.27 in) longer than the Convoy M21B, and 7.1 mm narrower at its widest point. Weights are published on different bases (with batteries vs listed), so compare them with care.
The SureFire EDCL2-T is 6.8 mm (0.27 in) longer than the Convoy M21B, and 7.1 mm narrower at its widest point. Weights are published on different bases (with batteries vs listed), so compare them with care.
Dimensions
| Convoy M21B Check price ↗ | SureFire EDCL2-T Check price ↗ | |
| Length | 141.5 mm (5.57 in) | 148.3 mm (5.84 in)+6.8 mm |
| Head / width | 35.7 mm (1.41 in) | 28.6 mm (1.13 in)−7.1 mm |
| Body | 27.1 mm (1.07 in) | — |
| Weight | 120 g listed | 116.2 g with batteries |
| Battery | 21700 | 2x CR123A |
| Max output | — | 1,200 lm |
| Throw | — | — |
| Type | EDC | EDC |
| Price | $48.99 at flashlightgo.com, as of Nov 4, 2026 | $239.00 at batteryjunction.com, as of Nov 4, 2026 |
| Source | flashlightgo.com sourced Output depends on LED option | batteryjunction.com sourced Body diameter not listed |
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
M21B vs EDCL2-T: how they differ
Size and weight
The Convoy M21B is the shorter light: 141.5 mm (5.57 in) against 148.3 mm (5.84 in), a difference of 6.8 mm (5%). At its widest point the SureFire EDCL2-T is 7.1 mm slimmer (28.6 vs 35.7 mm). Weights are published on different bases (Convoy M21B: 120 g listed; SureFire EDCL2-T: 116.2 g with batteries), so they are not directly comparable.
Brightness and throw
The SureFire EDCL2-T is rated at 1,200 lm; we have no published maximum for the Convoy M21B. Output for the Convoy M21B depends on the LED option chosen.
Battery
The Convoy M21B runs on a removable 21700 battery; the SureFire EDCL2-T runs on removable 2x CR123A batteries. For scale, a 21700 cell is about 21 × 70 mm and a CR123A about 17 × 34.5 mm (nominal).
Price
When we checked on Nov 4, 2026, the Convoy M21B was $48.99 at flashlightgo.com and the SureFire EDCL2-T $239.00 at batteryjunction.com, so the Convoy M21B cost $190.01 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 Convoy M21B if you want a shorter light (6.8 mm shorter). Choose the SureFire EDCL2-T if you want a slimmer profile (7.1 mm narrower). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Convoy M21B Check price ↗ SureFire EDCL2-T
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
M21B vs EDCL2-T FAQ
Which is smaller, the Convoy M21B or the SureFire EDCL2-T?
The Convoy M21B is the shorter light: 141.5 mm (5.57 in) against 148.3 mm (5.84 in), a difference of 6.8 mm (5%). At its widest point the SureFire EDCL2-T is 7.1 mm slimmer (28.6 vs 35.7 mm). Weights are published on different bases (Convoy M21B: 120 g listed; SureFire EDCL2-T: 116.2 g with batteries), so they are not directly comparable.
Which is cheaper, the Convoy M21B or the SureFire EDCL2-T?
When we checked on Nov 4, 2026, the Convoy M21B was $48.99 at flashlightgo.com and the SureFire EDCL2-T $239.00 at batteryjunction.com, so the Convoy M21B cost $190.01 less. Prices change often, so check the current price before you buy.
Do the Convoy M21B and SureFire EDCL2-T use the same battery?
The Convoy M21B runs on a removable 21700 battery; the SureFire EDCL2-T runs on removable 2x CR123A batteries. For scale, a 21700 cell is about 21 × 70 mm and a CR123A about 17 × 34.5 mm (nominal).
Compare Convoy M21B with similar lights
Compare SureFire EDCL2-T with similar lights
More
Sources
- Convoy M21B: specs from manufacturer published specs as listed by flashlightgo.com. Drawing: outline from published specs. Price $48.99 from flashlightgo.com, checked Nov 4, 2026; prices change often.
- SureFire EDCL2-T: specs from manufacturer published specs as listed by batteryjunction.com. Drawing: shape measured from manufacturer photo (batteryjunction.com), scaled to the published length and diameter. Price $239.00 from batteryjunction.com, checked Nov 4, 2026; prices change often.
Found an error? Email [email protected] and we will fix it.