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..