H1 Vs. H4 Headlights - What Is The Difference? - Early 911S Registry

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  1. 09-23-2007, 12:45 AM #1 Zeephyrin
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    Zeephyrin is offline Senior Member Join Date Apr 2007 Location Slovakia Posts 122

    H1 vs. H4 headlights - what is the difference?

    Being quite novice to the Porsche world; could someone please clarify what is the difference between H1 and H4 headlights? Thank you, Z.
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  2. 09-23-2007, 03:20 AM #2 andyjboy
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    andyjboy is offline Senior Member Join Date Jan 2003 Location UK Posts 2,694
    Basically the main differences are: H1 - 2 separate bulbs & reflectors - 1 each for main & dip beams - 4 screws in chrome rim for adjusting beams (+ bottom retaining screw) H4 - 1 bulb/reflector for combined main/dip beam - 2 screws in chrome rim for adjusting beams (+ bottom retaining screw)
    Andy Early 911S Reg #753 R Gruppe #105
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  3. 09-23-2007, 11:09 PM #3 Zeephyrin
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    Zeephyrin is offline Senior Member Join Date Apr 2007 Location Slovakia Posts 122
    Thank you Andy, clear now. Z.
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  4. 09-24-2007, 07:23 AM #4 70SATMan
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    70SATMan is offline Righteous Indignation 70SATMan's Avatar Join Date Jul 2003 Location Santa Cruz, CA Posts 4,258
    Quote Originally Posted by Zeephyrin Being quite novice to the Porsche world; could someone please clarify what is the difference between H1 and H4 headlights? Thank you, Z. Oh, and the price too!
    Michael “Electricity is really just organized lightning” -Dusty 70S Coupe -S Registry #586
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