Convoy L21B vs Convoy M21B
Quick take: The Convoy M21B is brighter (2,300 vs 1,100 lm); the Convoy L21B throws farther (1549m vs 327m); the Convoy L21B runs longer on high (2 vs 1.5 hrs).
| Spec | Convoy L21B | Convoy M21B |
|---|---|---|
| Price | $30 | $30 |
| Rating | — | — |
| Type | Thrower | EDC |
| Lumens | 1,100 lm | 2,300 lm |
| Candela | 600,000 cd | 26,800 cd |
| Beam distance | 1549m | 327m |
| Runtime | 2 hrs (high) | 1.5 hrs (high) |
| Battery | 21700 | 21700 |
| LED | Osram CULPM1 | XHP70.3 HI 5000K |
| Beam type | Throw | Balanced |
| Modes | 4 Stepped | 4 Stepped |
| UI | Biscotti | Biscotti |
| IP rating | IPX8 | IPX8 |
| CRI | 70 | 90 |
| Weight | 10.5 oz | 4.3 oz |
| Dimensions | 6.5 x 2.4 in | 5.6 x 1.4 in |
| Warranty | 1 Year | 1 Year |
What owners report
Convoy L21B
- ✓Around 1,300 m of measured ANSI throw — best in class at the price
- ✓SFT-40-W domeless emitter that handles 10+ amps
- ✓Capable 8-amp buck driver borrowed from a higher-end design
- ✓Stable tailstand
- ✓Convoy's informal but genuinely responsive parts-and-repair support
- ✗Body texturing isn't aggressive — slippery in the wet
- ✗Only a basic lanyard included for carry
- ✗No charging, and cells with built-in charging won't fit
- ✗Protected 21700s are too long
- ✗Biscotti interface is basic compared with modern firmware
Convoy M21B
- ✓2,000+ lumens with a 90+ CRI option for around €30
- ✓Smooth reflector gives a sharp hotspot and 400 m of throw on the SST-40
- ✓Wide emitter choice, including custom orders
- ✓Hard-anodised aluminium with excellent thermal conductivity
- ✓Mode range from moonlight to turbo, with owners reporting no issues
- ✗No manual or published specifications supplied
- ✗No onboard charging — an external charger is required
- ✗No lockout: unscrew the tailcap for storage or it can switch on in a bag
- ✗Buying means AliExpress rather than a domestic retailer
- ✗No holster or accessories included

