The ultimate daytime running lightThe Trek Flare RT tail light is the ultimate daytime-visible rear bicycled light for road rides, daily commutes and beyond. It features a bright, rechargeable light that can be seen from up to two kilometres away. An integrated light sensor auto-adjusts brightness based on your environment, making it easy to stay visible, both day or night.Product detailsSpecifically designed focus, flash and range for ultimate daytime visibilityThe 90-Lumen interruptive flash pattern can be seen from up to 2 km during the dayThe integrated light sensor auto-adjusts brightness to your environmentConnect with compatible ANT+ devices for always-on, battery status and wireless controlFlash modes: 90LM-6hrs, 45LM-12hrs, 5LM-15hrs. Steady modes: 25LM-4.5hrs, 5LM-13.5hrsConfidently ride through wet conditions with an updated USB port and IPX7 waterproof ratingBattery-save mode provides 30 minutes of additional runtime when battery life reaches 5%Includes Flare RT, rear Quick