Planet Bike Rojo 100 Taillight. The Rojo 100 USB rechargeable bike tail light is designed to keep you safe and visible on every ride, day and night. It’s packed with up to 100 lumens of power so you’ll be sure to be noticed on your daytime rides and commutes whether you’re on the road, bike path or turning the corner downtown.

• Battery: 1, 35x25x5mm Lithium Ion Polymer, 3.7(V), 2.4(Wh), 11.6g, Included