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Xenon Headlights - Unusual LED Lighting Pattern? (YouTube vid)

Discussion in 'New A3/S3 (8V Chassis)' started by M_D_O_London, Sep 19, 2013.

  1. M_D_O_London
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    M_D_O_London Member

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    Morning All,

    Was watching a review of an A3 1.8 TFSI 8V Sportback on YouTube by RPM TV (South Africa) and couldn't help notice that the vehicle has the LED daytime running lights on a strange 'demo' mode when stationary (where light seems to gradually run through the cluster). Can be seen from 3 seconds in and various other times when the vehicle is stationary.

    Is this a special feature of some sort? Am sure I'm not just seeing things! :detective2:

    https://www.youtube.com/watch?v=naOVHc2Ptz4&feature=youtube_gdata_player
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  2. RJMahieu
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    RJMahieu New Member

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    It's not a feature I'm aware of. In fact, due to the erratic nature, I'm guessing it's because of a difference in frequency between the lights and the camera.
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  3. JohnnyM100
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    JohnnyM100 Member

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    +1
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  4. mjcourtney
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    mjcourtney Active Member

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    Yep - it's the scan rate of the LEDs showing up as a strobe effect when filmed. To the naked eye they'll appear to be solidly on.
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  5. cemerson
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    cemerson Active Member

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    So the answer is yes, you can have that effect if you film your LED lights with the right framerate, and then play it back to yourself :p
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  6. M_D_O_London
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    M_D_O_London Member

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    Ah yes - of course, that's it. Have seen similar effects on Top Gear when they've had vehicles with LED's. In slow-motion shots, the lights appear to flash / flicker. Frame rate frequency makes complete sense.

    So - no MMI setting for DRL 'dance mode'
    Last edited: Sep 19, 2013
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  7. RJMahieu
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    RJMahieu New Member

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    It's too bad though. Dance mode would be a fun feature :)
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