Planet Bike Blinky Squared Taillight. Features: A sleek and compact 1.25" square light that will mount to any round tube Features a 15 LED circular array that emits 30 lumens of light in all directions, making cyclists visible not only from behind but from also from the side Light range varies from high, low, superflash day, and courtesy modes Smart charging technology with built in low battery indicator Includes stretch bike mount and charging cord Specs: Model:blinky squared Lumens:30 Modes:4 Rechargeable:yes Color:red/black Weight:19g