Radiantz LED Retroz Red Turn Signal Inserts 9500-17 Since LEDs do not take as much power to run as a regular bulb a load equalizer may be required when using LEDs With the base on the wires the install is as easy as removing your existing bulb and plugging in the new LED light A pair of 48 LED turn signal retros for the stock Harley bullet style housing This is Dual function which is for 1157