Exposure Lights Trace & TraceR Light Set - Mk3 The Trace & TraceR Mk3 Light Set is a premium, extremely lightweight front and rear light set designed for urban commuting and daytime visibility. The Trace Mk3 now delivers over 10% more power, enhancing safety and performance. Both Trace and TraceR include ReAKT and Peloton modes, USB-C charging for convenience, six selectable burn times, a DayBright pulse pattern, and side illumination for full 360° visibility, making the set an attractive and versatile lighting solution. Exposure Lights ReAKT Technology ReAKT automatically adjusts output based on ambient light and increases brightness under braking for added safety. Alternatively, Peloton mode reduces glare for following riders during group rides. In the box Trace MK3 DB GMB & TraceR ReAKT Daybright Seatpost Mount Handlebar Mount 2 x USB - C Charge Cable QS Guide.