These taillights are split 30-10-10-10 so that the inner 30 LEDs are the brake light and taillight and the outer 30 sequence 10-10-10 with the turn signals so they work on cars that originally had separate turn signals.
Flush mounting, build-in lenses are 1/2″ wide X 15-1/4″ long. With hardware, electronic flasher and instructions.