The Ravemen TR300 is an incredibly powerful rear light featuring 3 high - lumen CREE XP - E2 red LEDs. It offers a wider viewing angle and can reach up to 300 LED lumens in flashing modes, making riders highly visible during both day and night rides. There's an optional Auto on - off function. The light automatically turns on when it senses motion and switches off after 2 minutes of inactivity. Its intelligent memory circuit remembers the last brightness level and mode used. With a run - time of 9.5 hours on high mode and up to 27.5 hours in rapid flashing mode, it's ideal for long rides. This light provides the power and reliability you need to stay safe on the roads. Key features include flashing modes with max 300 LED lumens for excellent daytime visibility, internal side reflecting stripes to enhance side visibility, an auto on - off mode for convenience, a solid and lightweight anodized aluminium body, compatibility with round and aero seatposts, a micro USB charging port compatible with most phone chargers, and an intelligent memory circuit. Specifications are as follows: 3 * CREE XP - E2 red LED, a 1600mAh/3.7V rechargeable Li - ion battery, dimensions of the light unit are 41mm (L)*33mm (W)*62mm (H), and it weighs 77g. Note that design and specifications may change without notice. Run times are High: 9.5 hours, Low: 58 hours, Flashing 1: 2 hours, Flashing 2: 8.5 hours, Rapid Flashing: 27.5 hours, Pulse Flashing: 8 hours.

Using the Ravemen Tr300 Rear Light is easy. First, charge it using the micro USB port, which works with most phone chargers. Once charged, attach it to your round or aero seatpost. You can choose from different lighting modes. When you turn it on, the intelligent memory circuit will remember the last brightness level and mode you used. If you enable the Auto on - off mode, the light will turn on when it senses movement and turn off after 2 minutes of staying still. This is great for saving battery. For maintenance, keep the light clean and dry. Avoid exposing it to extreme temperatures. Also, be aware that the design and specifications might change, so check the latest details regularly. When the battery runs low, just plug it in to recharge and you're ready for your next ride.