
Bulbs are bright, well designed, easy to install and fit the socket perfectly (unlike others I've tried). The fans are silent and don't seem to interfere. Polarity matters! You'll see they have locking tabs on either side of the fork, meaning they're meant to be used anyway, so try flipping them before you panic. I switched from 1 to 3 to get all 4 to work because I had to rotate the connector 180 degrees. The reason I can't use them is because my high beams are also my daytime running lights and they weren't made for low beam assist. the power function that drl needs. If you have a direct low and high beam with separate DRL, this would be a great option for you.

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