With its state-of-the-art radar technology, the SEEMEE R300 is not just a taillight. It's a proactive safety measure. It detects approaching vehicles up to 140 meters distant, tracking speeds from 5 to 100 km/h. This proactive monitoring dramatically reduces rear-collision risks, whether from fast-moving vehicles, e-bikes, or casual riders, giving you peace of mind on the road.
Features at a Glance:
✔ ANT+ Radar System
✔ Compatible with Bike Computers
✔ Max Output: 300 Lumens
✔ Max Runtime: 100 Hours
✔ 2400m Visibility
✔ Max Detection Distance: 140 m
✔ 270° Wide Viewing Angle
| MODE | LOW | HIGH | NIGHT FLASH | DAY FLASH | ECO FLASH | GROUP RIDE MODE | ONLY RADAR MODE | |
|---|---|---|---|---|---|---|---|---|
LUMENS | 15LM | 50LM | 10/50LM | 0/100LM | 0/3/3/10LM | 5LM | 1LM | |
h:min | RADAR ON | 14:30 | 08:00 | 11:54 | 16:12 | 24:00 | 20:06 | 26:18 |
| RADAR OFF | 32:42 | 19:30 | 26:30 | 38:24 | 100:00 | 54:00 | / | |
| RADAR FLASH INDICATOR | RADAR NIGHT FLASH | RADAR DAY FLASH | RADAR FLASH OFF | ONLY RADAR MODE | |||
|---|---|---|---|---|---|---|---|
| MODE | ECO FLASH | LOW | NIGHT FLASH | HIGH | DAY FLASH | GROUP RIDE MODE | LIGHT UP IN THE LAST SELECTED RADAR FLASH MODE |
LUMENS | 0/60LM | 0/300LM | 0LM | 0/300LM | |||

The SEEMEE R300 triggers a 300-lumen alert at 70m vehicle proximity, with smart dimming for safe, friendly visibility.
Alerts you to approaching vehicles from 140 m behind with visual and audible prompts; it's got your back, even around bends, with a 35° watchful eye.

Enjoy unparalleled 270-degree visibility that keeps you visible and safe, even from a distance of up to 2.4 kilometers.
Seamlessly integrates with leading cycling computers like Garmin, Wahoo, and Hammerhead, providing instant traffic updates.
With a robust 3350mAh battery, it powers through for a remarkable 100 hours. Rapid recharge in a mere 2.15 hours via USB-C.

Intuitively harmonizes flash patterns among nearby compatible taillights, amplifying visibility and team style on the road.
With its state-of-the-art radar technology, the SEEMEE R300 is not just a taillight. It's a proactive safety measure. It detects approaching vehicles up to 140 meters distant, tracking speeds from 5 to 100 km/h. This proactive monitoring dramatically reduces rear-collision risks, whether from fast-moving vehicles, e-bikes, or casual riders, giving you peace of mind on the road.
Features at a Glance:
✔ ANT+ Radar System
✔ Compatible with Bike Computers
✔ Max Output: 300 Lumens
✔ Max Runtime: 100 Hours
✔ 2400m Visibility
✔ Max Detection Distance: 140 m
✔ 270° Wide Viewing Angle
| MODE | LOW | HIGH | NIGHT FLASH | DAY FLASH | ECO FLASH | GROUP RIDE MODE | ONLY RADAR MODE | |
|---|---|---|---|---|---|---|---|---|
LUMENS | 15LM | 50LM | 10/50LM | 0/100LM | 0/3/3/10LM | 5LM | 1LM | |
h:min | RADAR ON | 14:30 | 08:00 | 11:54 | 16:12 | 24:00 | 20:06 | 26:18 |
| RADAR OFF | 32:42 | 19:30 | 26:30 | 38:24 | 100:00 | 54:00 | / | |
| RADAR FLASH INDICATOR | RADAR NIGHT FLASH | RADAR DAY FLASH | RADAR FLASH OFF | ONLY RADAR MODE | |||
|---|---|---|---|---|---|---|---|
| MODE | ECO FLASH | LOW | NIGHT FLASH | HIGH | DAY FLASH | GROUP RIDE MODE | LIGHT UP IN THE LAST SELECTED RADAR FLASH MODE |
LUMENS | 0/60LM | 0/300LM | 0LM | 0/300LM | |||

The SEEMEE R300 triggers a 300-lumen alert at 70m vehicle proximity, with smart dimming for safe, friendly visibility.
Alerts you to approaching vehicles from 140 m behind with visual and audible prompts; it's got your back, even around bends, with a 35° watchful eye.

Enjoy unparalleled 270-degree visibility that keeps you visible and safe, even from a distance of up to 2.4 kilometers.
Seamlessly integrates with leading cycling computers like Garmin, Wahoo, and Hammerhead, providing instant traffic updates.
With a robust 3350mAh battery, it powers through for a remarkable 100 hours. Rapid recharge in a mere 2.15 hours via USB-C.

Intuitively harmonizes flash patterns among nearby compatible taillights, amplifying visibility and team style on the road.