I installed
Hyper-Lites on the back of my bike this summer. There are two banks of 20 small LEDs on each side that function as running, turning, and braking lights. They are impossible to miss if you have any eyesight whatsoever. Decided this was a worthwhile investment after very nearly being rear-ended twice this earlier this year. I have a video of them in action if anyone is interested in seeing the flash
