Bullet Signal Insert - 1157 - Amber Utilizing advanced LED technology, these LED turn signals maximize performance with unique reflector technology and the most superior automotive grade LEDs, ProBEAM? turn signals produce bright light output with a wider viewing angle, The 24 red ProBEAM? LEDs showcase a smooth light that functions as a full-contrast turn signal for maximum visibility, SMART Signal Stabilizer* or Load Equalizer required when front or rear turn signals are converted to LED on '13-Earlier Harley-Davidson? Sportster?, '11-Earlier Dyna?, '10-Earlier Softail?, '13-Earlier Touring and Trikes and all V-Rod? models to ensure proper turn signal function and flash speed.