These hi-tech powersports LED bulbs are revolutionary because of the 360 degree design of LEDs around the base of the bulb. This is the ONLY LED taillight that will function in ANY mounting position. The 360 LEDs are made with the highest quality LEDs to emit the most light possible. Like all LEDs, benefits are that they draw virtually no electricity, are vibration resistant, and last up to 10,000 hours of use. the 360 LED is available in both the traditional 1157 round metal base and the new 3157 flat plastic base.