Convoy M21B 21700 flashlight (Shipped from international warehouse)

All models listed on this page are shipped direct from our international warehouse and will take 7-10 working days to be delivered.

Quick Overview

Material

Aluminum alloy

Driver

12 configurable mode groups with temperature protection

Lens

AR-coated glass

Protection

Low-voltage warning and reverse-polarity protection

Convenience

Mode memory and tailstand capability

Battery

1 × standard 21700 lithium battery (not included)

Size & Weight

Head / Body

35.7 / 27.1 mm

Length

141.5 mm

Weight

120 g

Reflector Compatibility

Orange Peel (OP)

XHP70.3 HI, XHP50.3 HI, B35AM, 519A, SFT70, LHP531, LHP73B

Smooth (SMO)

SFT40, KW CULPM1.TG, SFT-25R

LED & Driver Output

Choose the correct driver output for your LED model.

LED Model	Driver Output
SFT70	6 V / 5 A
519A	3 V / 6 A
SFT40, KW CULPM1.TG	3 V / 8 A
B35AM	6 V / 2.4 A
LHP531	3 V / 10 A
LHP73B	3 V / 20 A

Driver Features

No visible PWM in any mode, with intelligent temperature management.

When the temperature exceeds 55°C, the driver automatically reduces current to lower heat output. The flashlight surface may still become hot during use.

Basic Operation

Power On / Off

Fully click the switch.

Change Mode

Half-press the switch to cycle through modes.

Configuration Mode

How to enter configuration mode

Turn the flashlight on.
Quickly half-press the switch 20 times or more.
The flashlight will signal each option with flashes and a buzz. Half-press during the desired flash to select it.

Option 1 · Select a Mode Group (1 flash + buzz)

Group	Select At	Mode Sequence
1.1	1 flash	0.1% → 1% → 10% → 35% → 100% → Strobe → Biking → Battery Check
1.2	2 flashes	0.1% → 1% → 10% → 35% → 100%
1.3	3 flashes	100% → 35% → 10% → 1% → 0.1%
1.4	4 flashes	1% → 20% → 100% → Strobe → Biking → Battery Check → SOS
1.5	5 flashes	1% → 20% → 100%
1.6	6 flashes	100% → 20% → 1%
1.7	7 flashes	0.1% → 1% → 10% → 50% → Strobe → Biking → Battery Check → SOS
1.8	8 flashes	0.1% → 1% → 10% → 50%
1.9	9 flashes	50% → 10% → 1% → 0.1%
1.10	10 flashes	1% → 10% → 35% → 100%
1.11	11 flashes	100% → 20% → Strobe
1.12	12 flashes	100% only