Unlike other lights in the market that have narrow angles of light using old technology LEDs, AC11 series use 120 degrees ultra wide viewing angle SMD LEDs. Offering such a wide viewing angle makes this turn signal visible from adjacent road lanes, where it counts the most. When turning or changing lanes normally vehicles and pedestrians in 30 or 45 degrees off axis are most important to be alerted. More than 3 times more effective light in such angles makes AC11 series a clear winner.