A bicycle rear light is a mandatory accessory from June 1, 2020. The Taro taillight has four red LEDs. The light can be fixed to either 100% or 30% light output. The light can also be set to blink either steadily or so that the lights "go around" in a circle. The package includes a bracket with a quick release. The light can be easily removed and taken with you if necessary. The light has a pocket holder, so it can be easily attached to a backpack, hood or pocket. The taillight works with two AAA batteries. Batteries are not included in the package.