E-mark 18 Leds Super Canbus Error Free LED License Plate Lamp For Audi Q7 A3 S3 A4 / S4 B6 A6 / C6 S6 A8 / S8 RS4 Carbriolet RS6 Plus/Avant RS4/Avant quattro Maintenance Free, Easy Installation; Built-in Current Limiting Resistors; Long life, The theoretical data is more than 50, 000 hours; Major Power Savings,environment friendly; Aluminum plate design to heat generation significantly reduce; High ability of shock resistant; Brighter light; Low temperature;