Switchback LED Bulbs. Improve the appearance and lighting of your Mustangs exterior by installing a "Switchback" LED Turn Signal Conversion Kit. This conversion kit replaces those weak incandescent stock amber bulbs with super bright dual-color LEDs for a unique custom look. The dual-color feature allows you to use the White LEDs for the running/parking lights, but when you activate your turn signals or hazard lights the LEDs change to amber like magic. Power Saving 5050 SMD Technology. The bulbs included in this LED Conversion Kit feature 60 LED's, 30 white and 30 amber, set in a 360 degree viewing angle and utilize 3-chip 5050 SMD technology to produce super bright light while only consuming 1/10th of the power of the stock incandescent bulb. These LED bulbs are rated at 100,000 hours of continuous use. The load equalizer resistors required for installation are included. Application. This Switchback Turn Signal Conversion Kit is specifically designed for use on the 2005 to 2012 Ford Mustangs, including the V6, GT, Bullitt, and Shelby GT500 models. Recommended for use with clear turn signal housings.