F3 light USB bicycle headlights 3 t6 mountain bike rechargeable light LED lights professional riding bike lights
Operation method: turn on the lights
1; First link the power cord of the lamp holder to the power cord connector;
2; Press the blue switch on the back of the light to turn it on.
Gear adjustment: In the open state, press the switch to realize low, medium and high brightness adjustment.
Double flash gear entry: press and hold the switch for 3 seconds to enter the double flash gear;
Brightness indicator description:
After the lights are turned on, the 3 indicator lights on the back of the F3 will light up, indicating that the power is above 80%.
After the lights are turned on, the 2 indicator lights on the back of the F3 will light up, indicating that the power is above 50%.
After the lights are turned on, an indicator light on the back of the F3 will light up, indicating that the power is above 20%.
After the lights are turned on, an indicator light on the back of the F3 keeps flashing, indicating that the battery is too low and needs to be charged.
Operation method: turn on the lights
1; First link the power cord of the lamp holder to the power cord connector;
2; Press the blue switch on the back of the light to turn it on.
Gear adjustment: In the open state, press the switch to realize low, medium and high brightness adjustment.
Double flash gear entry: press and hold the switch for 3 seconds to enter the double flash gear;
Brightness indicator description:
After the lights are turned on, the 3 indicator lights on the back of the F3 will light up, indicating that the power is above 80%.
After the lights are turned on, the 2 indicator lights on the back of the F3 will light up, indicating that the power is above 50%.
After the lights are turned on, an indicator light on the back of the F3 will light up, indicating that the power is above 20%.
After the lights are turned on, an indicator light on the back of the F3 keeps flashing, indicating that the battery is too low and needs to be charged.