Specification:

Material: Aluminum alloy
Reflector: Smooth
LED: SST20 LED with DTP copper plate
LENS: Ar-coated glass lens
Driver: 7135 with biscotti firmware
Battery: C8 runs on 1pcs 18650 lithium battery (protected or unprotected)
Diameter of head: 44.5mm
Length: 142mm
Diameter of body: 25.2mm
Weight : 145g

Package type:

A. With 18650 battery:
1*C8+ Flashlight
1*18650 rechargeable battery
1*USB charger
1*Rope

B. No battery:
1*C8+ Flashlight
1*Rope

Driver (12 groups):

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