Using the Ravemen PR1200 is a breeze. First, mount the light securely on your bike using the provided bracket. To turn it on, use the wireless remote or the built - in controls. You can switch between the road and MTB modes easily. If you want to use it as a torch, just detach it from the bracket. When it comes to charging, connect it to a power source using the USB cable. The charging lights will show when it's fully charged. As a power bank, plug your USB device into it to start charging. For maintenance, keep it clean and dry. Avoid exposing it to extreme temperatures as this might affect the battery and the light performance. Also, check the mounting bracket regularly to make sure it's still secure.