The Exposure Boost-R 3 ReAKT is a rear light with 200 lumens in flash mode and 75 lumens constant. ReAKT technology adjusts output to ambient light and adds an automatic brake light, while Peloton mode dims the light when it detects a following rider's front light. Day Bright gives daytime visibility from over a kilometre away.
The 45 g body is CNC machined from 6063 aluminum and anodized, with IP67 and IK09 ratings. A 270° lens adds side visibility at junctions. Runtime reaches up to 70 hours depending on mode, and USB-C PD charging is up to 66% faster than the previous version. A single press shows battery status when the light is off.
Quick Facts
| Feature |
Specification |
| Maximum Output |
200 lumens flash, 75 lumens constant |
| Runtime |
Up to 70 hours depending on mode |
| Material Composition |
CNC machined 6063 aluminum |
| Claimed Weight |
45 g |
| Water & Impact Rating |
IP67 water resistance, IK09 impact resistance |