Exposure Lights TraceR Mk4 ReAKT Rear Light - One Size

The Exposure Lights TraceR Mk4 ReAKT is a lightweight rear light in a CNC aluminum body, made for urban commuting, road and time trial use. Its ReAKT lighting flares up automatically under braking and adapts to ambient light to keep contrast and visibility high, adjusting for street-lit areas and for moving from shade into sunlight.

Peloton mode dims the light automatically when it detects the front light of the rider behind, so it doesn't dazzle a chain gang, then flares up again at the back of the pack. Output reaches up to 200 lumens, and it charges over USB-C in 90 minutes.