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Thread: Noticeable difference between Zevo 3157 (RED) & OSRAM 3557R (RED)

  1. #1
    Enlightened
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    Thinking Noticeable difference between Zevo 3157 (RED) & OSRAM 3557R (RED)

    I've searched here to see if the difference I noticed between these bulbs was ever mentioned, but I didn't see anything.

    I noticed there's a difference between the ZEVO 3157 (vs.) the OSRAM 3557R (P27/7W).

    The OSRAM's LED is deeper inside with a shrouded housing around the LED (vs.) the ZEVO is un-shrouded.

    - Are these the same bulb types, and LED's?

    - Why are both bulbs marked 3557R...is that an internal mfg. bulb identifier?

    - Seems like the ZEVO would have a wider light distribution and/or the OSRAM is more focused and narrow?

    - Any expert explanation between the 2 for others to consider, & is one better than the other in certain applications?

    Just a curious observation.......

    OSRAM:
    https://www.osram.us/ecat/LEDriving%...9/ZMP_4053094/

    OSRAM:
    https://www.amazon.com/Osram-Premium.../dp/B01LYOKDIU

    -------------------------------------------------------------------------------------------------------------------------------

    ZEVO:
    https://www.amazon.com/SYLVANIA-Brig...omotive&sr=1-2
    Last edited by Cadchris; 05-16-2021 at 04:36 PM.

  2. #2

    Default Re: Noticeable difference between Zevo 3157 (RED) & OSRAM 3557R (RED)

    Quote Originally Posted by Cadchris View Post
    Why are both bulbs marked 3557R
    Because they are the same bulb, just photographed and packaged/marketed differently.

    Seems like the ZEVO would have a wider light distribution and/or the OSRAM is more focused and narrow
    There is no reason to think so.

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