This is BMW parts item H7CANBUSDASH / 226971611, described as CAN BUS adapters for Hella H7 LED bulbs to help suppress bulb failure messages that you can buy at the best price with fast shipping.
H7 Led Canbus Headlight Car Light Bulb Moto Lamp 12v For Audi A1 A3 8l 8p 8v A4 B9 B8 B7 B6 A5 A6 C5 C6 C7 C8 A7 A8 D3 Q3
2 in 1 Dual Core LED Headlight Canbus Decoder Fix for H1/H3/H4/H7/H8/H9/H11 LED bulbs HIDS Direct for HID Xenon kits, Xenon bulbs, MTEC bulbs, LED's, Car Parts and Air Suspension
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Currently, LED bulbs are only legal in the USA for Fog Light use. LED bulbs are legal for off-road use in ATV, snowmobile, and off-road racing use.
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