Partsam 42mm Festoon LED Light Bulbs Error Free LED Interior Lights Map Dome Lights Bulbs 211-2 578 569 Festoon LED Bulb - Red (6 Pcs)

Specification: Color: Blue Bulb Size: Length: 41.5mm, Width:12mm Built-in Circuit for 12V DC Power Input Each bulb contains 4 pcs Ultra Blue 5050 SMD LED Each bulb contains Heat Sink to prevent Overheat Built-in CAN-bus controller, no bulb out error, no flickering Cross reference parts#: 211-2, 212-2, 214-2, 560, 569, 578 Package Contents: 4 pieces Ultra Blue 4-SMD Error Free 41mm 578 LED bulbs with built-in Can-bus load resistors The bulbs have the built in Can-bus load resistors and are made for European cars, such as Mercedes-Benz, BMW, Porsche and Audi etc.. ß¹ Cross Reference£º Festoon 31mm-35mm: 3021, 3022, 3175, 6428, 6430, 6461, DE3021, DE3022, DE3175 Festoon 36mm-39mm: 3423, 3425, 6411, 6418, 6423, 6461, DE3425 Festoon 40mm-44mm: 211, 211-2, 212, 212-2, 214-2, 569, 578, 6413, 6429, 12844, DE4410 Installation: Easy installation, 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. LED lamp has "+" and "-" terminals, if the LED does not light up, just simply flip it 180 degrees to reverse the polarity of the LED bulbs. Note: Fits the car models, please see compatibility chart; If your vehicle is not listed, please contact us for more info. We recommend that you measure the length of your old bulb to make sure it's replaced with the correct LED bulb.