The outer ring of 24 white ProBEAM« LEDs showcase a smooth white halo that functions as the running light while 12 center amber LEDs function as the turn signal When a turn signal is activated the White LEDs turn completely off for the entire turn signal cycle providing greater visibility to the amber turn signal ProBEAM Amber/White Dynamic RingzÖ LEDs with aluminum housing 24 white DRL automotive grade LEDs per unit 12 amber turn, automotive grade LEDs per unit Aluminum bullet housing 2.4ö Diameter x 3.0ö Advanced reflector technology 100% plug and play front turn signals. TURNSIGNAL ECE IND BLK