Most Florida cyclists realize that when riding between sunset and sunrise, the law requires cyclists to have a red rear light and white front light visible from a certain distance. What kind of light should the cyclist use? Probably the most common rear light is called the “blinkie” light. It is a flashing red rear light. Blinkie lights are inexpensive and the batteries seem to last a long, long time. Most Florida bike shops sell “blinkie” rear lights for safety and to help cyclists follow this law. Many cyclists feel that “blinkie” lights catch the approaching motorists’ attention better than steady lights. But are flashing lights legal?