Got one of these for my HD fatboy. The custom brake light I had was less than adequate.
http://www.customdynamics.com/knight_rider_led_light_bar.htmAfter I installed it, I am now skeptical if I will get pulled over for the sequencing as running light. I did get the red one. It does look nice and really visible. And the pulsating brake light is super awesome.
Thinking of going by the police station and asking them, but thought I ask you guys what your opinion is?