With normal and smart 2 modes;
Press the power button and hold for 2s in working state, then the light flashes to switch mode;
Easy operation;
Hold for at least 1s to operate;
Easy to install;
Shortly press the power button to turn on and it will enter the normal mode; Press the button to switch between low / high / red / turn off states;
Press the power button and hold for 2s until the light flashes, then it turn into the smart mode; After that, every time press the button, the headlamp can switch between low / high / red / turn off states;
Press power button and hold for 2s in working state to go back to normal mode.