Why are the outer angel eye rings much dimmer than the inner?
With the older model BMW’s, they use one bulb to light up two rings per headlight whereas the newer BMW models use one LED bulb per ring. Please view the diagram below:
As you can see, the bulb near the left powers up both rings from one location. The inner ring will get majority of the light since the bulb is right behind it. The outer ring is further away and
the light has to travel a longer distance to reach the ring which is why the outer rings are not as brightly lit as the inner rings. The newer BMW vehicles use one LED bulb per ring so they
illuminate the rings very evenly and brightly.
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