The topeak redlite aura rear light combines 1 high flux piranha red led with 2 super bright red leds to give a beaming bright to provide you with better visibility than just a reflector alone the topeak rear light is very versatile making it easily and quick to mount to your seatpost any topeak mtx beamrack and topeak tubular racks the light also features 2 modes constant or blinking giving you the best light and visibility for up to 120 hours no matter what the conditions the topeak redlit