Kuryakyn Pulsating Brake Light Controller For Harley Street Glide / Road Glide Totally plug-and-play, with this controller, your brake lights automatically pulsate and then remain brightly lit every time you apply the brakes. Features Design also allows easy connection of load equalizers if upgrading turn signals to LED's 100 plug-and-play Brakes automatically pulsate and remain lit when the brake is applied