Convoy M21B flashlight with GT FC40 high CRI ,21700 flashlight

Material:  Aluminum Alloy

LED: GT FC40 with DTP copper plate

Driver: 12 groups  Temperature protection management inside

Low voltage warning:  Yes

Reverse polarity protection:  Yes

Lens type:  ar-coated glass

Reflector: orange peel

Mode memory: Yes

Tailstand:  Yes

Battery included:  No

Required battery type:  21700 lithium battery

Required battery quantity: 1pcs

Diameter(Head/Body):  35.7 / 27.1  mm

Length:  141.5mm

Weight: 120g

Driver (12groups):

biggest advantage is that no frequency can be seen in any mode, and there is temperature management.

It can control the flashlight temperature not to exceed 55 degrees Celsius,

If the flashlight temperature is below 55 degrees Celsius, it will output full current. If it is above 55 degrees Celsius, it will constantly adjust the current so that the flashlight will not overheat.

12 groups:

1.click the switch to turn the flashlight on/off,tap the switch to select mode

2.if flashlight is turned on,tap the switch 20 times quickly to enter into config mode.(On a visual interface,as long as you click on an option, it means that the option is selected. The flashlight has no visual interface. It flashes to represent an option, and "tap the switch in the flashing process" means to select the option.)

   Option 1 (normal-flash 1 time + buzz-flash): tap the switch to enter into sub-option to select the mode group,If the user has no operation, the config mode will enter option 2.

       -------------sub-option 1.1 (normal-flash 1 time) : tap the switch to select mode group 1 (0.1%, 1%, 10%, 35%, 100%, strobe, biking, battery-check)

       -------------sub-option 1.2 (normal-flash 2 times) : tap the switch to select mode group 2 (0.1%, 1%, 10%, 35%, 100%)

       -------------sub-option 1.3 (normal-flash 3 times) : tap the switch to select mode group 3 (100%, 35%, 10%, 1%, 0.1%)

       -------------sub-option 1.4 (normal-flash 4 times) : tap the switch to select mode group 4 (1%, 20%, 100%, strobe, biking, battery-check, SOS)

       -------------sub-option 1.5 (normal-flash 5 times) : tap the switch to select mode group 5 (1%, 20%, 100%)

       -------------sub-option 1.6 (normal-flash 6 times) : tap the switch to select mode group 6 (100%, 20%, 1%)

       -------------sub-option 1.7 (normal-flash 7 times) : tap the switch to select mode group 7 (0.1%, 1%, 10%, 50%, strobe, biking, battery-check, SOS)

       -------------sub-option 1.8 (normal-flash 8 times) : tap the switch to select mode group 8(0.1%, 1%, 10%, 50%)

       -------------sub-option 1.9 (normal-flash 9 times) : tap the switch to select mode group 9 (50%, 10%, 1%, 0.1%)

       -------------sub-option 1.10 (normal-flash 10 times) : tap the switch to select mode group 10 (1%, 10%, 35%, 100%)

       -------------sub-option 1.11 (normal-flash 11 times) : tap the switch to select mode group 11 (100%, 20%, strobe)

       -------------sub-option 1.12 (normal-flash 12 times) : tap the switch to select mode group 12(100% only)

   Option 2 (normal-flash 2 times + buzz-flash): tap the switch to active the mode memory or inactive it,If the user has no operation,flashlight will enter into the last mode. 

battery-check  instructions:

 <2.95V    1 flash,

2.95-3.25V  2 flashes,

3.25-3.55V  3 flashes,

3.55-3.85V  4 flashes,

>3.85V     5 flashes