Be visible day or night with this unique & super-powerful rear light. Flashing mode automatically boosts output to 100 lumens during the day to make you visible up to a third of a mile or half a kilometre in full daylight for up to 14hrs. Up-firing red LEDs w/ patent pending reflector design for light that projects back long distance Flashing mode auto-boosts output to 100 lumens in daylight for increased visibility 3 nighttime modes w/ outputs between 50lms / 25lms & runtimes between 6hrs / 17hrs USB rechargeable in 1:20hrs using integrated flip out full size USB (Universal Serial Bus) tab
Includes: seatpost mounts for 27.2mm 30.9mm & Venge aero posts