You never have enough security lights especially on the back of your Spyder. This New Aluminum Piezo LED Brake Strobe is perfect for visibility. 3 modes to choose from Strobe, Slow Flashing and Solid Red. With the supplied OEM harness, installation is easy. Connect the positive to the brake line and the "ground" and everything is ready. This part only lights up when you apply the brakes for maximum visibility. Use it on your trailer or wherever you want extra visibility.