Product Review

Specification:
Color: White
Bulb Size: Length: 41.5mm, Width:12mm
Built-in Circuit for 12V DC Power Input
Each bulb contains 4 pcs Ultra White 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:
6 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..

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.