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post #1 of (permalink) Old 05-20-2019, 12:15 PM Thread Starter
BenzWorld Newbie
Date registered: May 2019
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Low Beam Lamp Socket Polarity Question

2008 E350: I am upgrading to Hikari LED bulb and they need to insert their plug with the correct polarity. So the OEM plug for this H7 type socket has one with two wires and one with only one. Which is positive and which is negative?

Appreciate your assistance!
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