The ROCKBROS TL905 is a compact LED rear bicycle light designed to keep you visible during urban commutes, road trips, or mountain biking. It offers three distinct lighting modes, including constant, flash, and pulsations, allowing you to choose the signal that best suits your environment. Constructed from a blend of PP, PE, and silica gel, the housing is both shock-resistant and weather-resistant to handle the vibrations and rain of outdoor riding. Weighing only 17g, it remains unobtrusive while providing high-intensity red illumination. You can easily power the device via its integrated USB rechargeable battery, and the universal strap makes it versatile enough to attach to your seat post, helmet, bag, or even your clothes.