2X T20 7443 LED Decoder Warning Error Canceller Turn Signal Lamp Anti Flicker Load Resistor Set Built-in Decoder & Resistor. Cancel Error message cause by OBC (On-Board Computer) Check Cancel Hyper Flashing on Turning Signal. Cancel Hyper Blink on LED. Reduce the Power on LED light so that can work better High Quality ABS Housing ensures the secure temperature range. Simply twist your LED bulb onto the base, and twist the other end into your existing bulb socket. Applicable to Most Auto Car Vehicle Automobile with 7443/T20 Socket. This decoder will work for European vehicles such as Audi, BMW, Mercedes, Porsche, Volkswagen or domestic vehicles for fog lights and ensure the LED bulbs light up full power without malfunction issue nor flickering issue. Package included: 2x 7443/T20 LED Decoder Adapter