H4 style bulb wiring hookup

Printed From: the12volt.com
Forum Name: Lights, Neon, LEDs, HIDs
Forum Discription: Under Car Lighting, Strobe Lights, Fog Lights, Headlights, HIDs, DRL, Tail Lights, Brake Lights, Dashboard Lights, WigWag, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=15961
Printed Date: August 15, 2025 at 3:34 AM

Topic: H4 style bulb wiring hookup

Posted By: FirebirdStud
Subject: H4 style bulb wiring hookup
Date Posted: July 06, 2003 at 10:52 PM

I have a 95 firebird that I did a headlight conversion to. I put in the H4 bulb, but how do you know how to hook it up? like which connector is ground, high and low?? thanks for your help. the connector looks like this " | _ | ".

Cody

Replies:

Posted By: hotrodelectric
Date Posted: July 07, 2003 at 12:08 AM

Cody- on that style of bulb the "_" is low, and I forget which one is coded high, but a bulb doesn't care where power and ground go, so either one of "|" can be the high. However, make sure it's that way for both sides. Lt green is high, tan is low.

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