PartsSquare 2xCanbus LED Decoder 3157 4157 Adapter Anti Hyper Blinking Flashing Error Cancel Built-in Decoder & Resistor Simply twist your LED bulb onto the base, and twist the other end into your existing bulb socket Cancel Error message cause by OBC (On-Board Computer) Check, Hyper Flashing on Turning Signal and Hyper Blink on LED Compatible With?These Bulbs: 3057 3155 3357 3457 3757 4057 4157 3056 3456 4156 3157A 3157NA (Only For reference) Voltage: 12V