2X 3157A LED Decoder Adaptor Turn Signal Light Anti Hyper Flashing Cancel Error Fitment: Applicable to Most Auto Car Vehicle Automobile with 3157-A Socket Compatible for 95% of vehicle with CANBUS System Including European vehicles such as Audi, BMW, Mercedes, Porsche, Volkswagen or domestic vehicles for fog lights or turn signal lights and ensure the LED bulbs light up full power without malfunction issue nor flickering issue Built-in Decoder & Resistor High Quality ABS Housing ensures the secure temperature range Package included: 2x 3157-A LED Decoder Adaptor