Using the Ion 50 R / Flare R Metro bike light set is a breeze. First, if you want to use it on your bike, just attach the included bike mount to your bike. Then, connect the lights to the mount. It's a tool - free process, so you can do it quickly. When you're not using it on your bike, remove the mount and you'll find a built - in clip. You can use this clip to attach the light to your belt, pocket, or bag. To charge the lights, simply connect them to a USB power source. As for maintenance, keep the lights clean by wiping them with a soft, dry cloth. Avoid exposing them to extreme temperatures or getting them wet for long periods. If you notice any issues with the charging or the light output, check the connections and contact customer support if needed.