Features:A pair of LED decoder universal fits for most of cars.Made of high quality materials, it is durable and can be used for a long time.Cancel error message caused by OBC (Onboard Computer) check.Cancel the hyper flashing on the brake backup reverse.Cancel the hyper flashing on the LED.Reduce the power of LED lights to make them work better.Plug & ply decoder, you can simply twist your LED bulb onto the base, and twist the other end into your existing bulb socket.Specification:Condition: Brand NewMaterial: ABSMain Color: BlackVoltage: 12VQuantity: 2pcsPackage Weight: Approx. 177g / 6.2ozApplication: 3157A LED decoderCompatible with these bulbs: 3057 3155 3357 3457 3757 4057 4157 3056 3456 4156 3157A 3157NA (for reference only)Package Included:2 * LED DecoderNote:For the brake light halogen lamp after the original LED, there will be a fault light, or the light will blink, with this 3157A decoder can support the decoding of most models to eliminate the fault, but can not be 100% lifted, because a small number of models of the computer system sensitive, must use a special decoder to adapt..