Specification: Color: Red Voltage:DV 12V Bulb Size:A Length:A 41.5mm, Width:12mmA Built-in Circuit for 12V DC Power Input Each bulb contains A 2 PCS Ultra White 5050A SMD LED Each bulb contains Heat Sink to prevent Overheat Built-in CAN-bus controller, no bulb out error, no flickering Cross reference A parts#:A 211-2, 212-2, 214-2, 560, 569, 578 Festoon A 31mm-35mm: A 3021,A 3022,A 3175,A 6428,A 6430,A 6461,A DE3021,A DE3022,A DE3175 Festoon A 36mm-39mm: A 3423,A 3425,A 6411,A 6418,A 6423,A 6461,A DE3425 Festoon A 40mm-44mm: 211,A 211-2,A 212,A 212-2,A 214-2,A 569,A 578,A 6413,A 6429,A 12844,A DE4410
Fitment: The bulbs have the built in Can-bus load resistors and are made for A European cars, such as A Mercedes-Benz,A BMW,A Porsche and A Audi etc..
Note: 1. Easy installation, A just plug & play. All you need to remove the lamp covers with a small flat screwdriver and direct replace the stock lamps with LED lamps.A 2. LED lamp has "+" and "-" terminals, A if the LED does not light up, just simply A flip it 180A A degrees to reverse the polarity of the LED bulbs.