Power Indicator
The LED indicator in the side switch shows the power status for 5 seconds after turning the FC12 on.
Green = remaining battery power is good (more than 30%).
Red = remaining battery power is poor (less than 30%).
Flashing Red = critical power, replace or recharge battery as soon as possible.
Low Voltage Protection: If the battery's voltage is lower than 2.7V, FC12 turns off automatically to avoid
battery damage by over discharge.
Battery Specifications
Battery Type
Rechargeable Li-ion battery
Battery Installation
Unscrew the tailcap to insert one 18650 battery with the anode side (+) towards the head, then screw the
tailcap back on. Both flat top and button top 18650 batteries are supported.
Recharging
The FC12 has a USB-C port for convenient recharging of its battery. Please connect it with a quality USB-C
cable and use a USB power adapter with 5V 1A. While charging the LED power indicator flashes red. Once
finished the indicator will turn green to indicate a full battery.
Operation Instructions
ON/OFF
Tap tail switch for momentary-on. Push down till a click for constant on. Single click turns it off.
Group 1: Stepped modes
Stepped modes give you fixed brightness levels to choose from: Eco – Low – Mid – High .
When ON. Single click cycle through stepped modes (Eco – Low – Mid – High).
Double click to activate Turbo mode. While in Turbo mode, single click to return to the previously
used mode.
Group 2: Ramping mode
Ramping mode gives you full flexibility to adjust brightness steplessly from Eco to Turbo level.
When ON. Press and hold to change brightness steplessly ("ramp"). Ramping changes its direction
when the button is being pressed again within 1.5 seconds. The light flashes once when it reaches
the lower or upper end of the ramp.
Double click to activate Turbo level.
Dimension & Quantity
18650 x 1
Nominal Voltage
3.7V
Compatible
Yes