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..