FR300. FR300 is a highly visible daytime running headlight to help you ride safely. It gives out 300 lumens in the warning flashing mode and works with Garmin/Wahoo computer mounts to keep your handlebar clean. It can also be a power bank to charge your bike computer when you need it. With the auto on-off mode, you can use the light conveniently.

Brighter daytime visible warning flashing mode: With the 300 lumens eye-catching warning flashing mode, FR300 will keep you visible in daytime riding; 3 constant modes and 3 flashing modes for various riding conditions.
Wide-angle lens with side visibility: Increase your side visibility when riding through a crossroad or junction.
Standard Garmin quarter-turn mount: The light can be mounted between the Garmin bike mount and computers; you can also fix the light at the bottom of Garmin Flush out-front mount. 
Adaptors for Wahoo computers included: For Wahoo computers, replace the top and bottom Garmin adaptors with the Wahoo one. (Note: FR300 DOES NOT work with the original Wahoo Element Bolt aero out-front mount)
USB-C Charging & Discharging Port: Charge the light easily or use it as a backup power bank to charge your bike computer (USB-C cable and USB-C to micro USB cable included). 
Warning: DO NOT charge your mobile phone with the light, otherwise it might damage the light and void the warranty. DO NOT charge or discharge the light when raining.
IPX6 Water Resistant Design: The light is usable when riding in the rain (please make sure the cap of the charging port is securely mounted after charging)
Auto on-off mode: Hands-free operation so you don't need to worry about turning the light off
Tether included for extra security: Use the tether to secure the light or computer for gravel or unpaved road riding.

Features:

• Highly efficient COB LEDs with maximum 300 lumens
• Eye-catching warning flash for daytime running and multiple brightness levels for various riding conditions
• Auto on-off mode for hands-free operation
• Works with Garmin/Wahoo computers and Garmin/Wahoo mounts
• USB-C charging port to charge the light easily
• USB-C discharging (only for charging bike computers)
• IPX6 water-resistant for riding in rain
• Mode memory function to remember the last used mode
• LED: COB LED
• Battery: 1200mAh/3.7V rechargeable Li-polymer battery
• Dimensions: 82 x 60 x 25.5mm
• Weight: 75g
• Aluminium mounting tab