Using this Magic Shine Monteer front light is a breeze. Just press the one - button control to switch between different modes according to your riding environment. When mounting, you can attach it to your helmet or bike handlebars (it fits 31.8mm and 35mm handlebars). If you want more convenient control, you can buy a remote separately. For charging, use the USB - C PD function to charge the 7.2V 10,000mAh battery pack. Always check the battery indicator to know when it needs charging. Keep the light in a dry place as it's IPX 5 waterproof but not suitable for long - term submersion. To maintain its performance, clean the lens regularly with a soft cloth. Avoid hitting the light against hard objects as it may damage the internal components and LEDs.