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headlight amperage up

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=103879
Printed Date: May 23, 2024 at 2:53 PM


Topic: headlight amperage up

Posted By: chillin420
Subject: headlight amperage up
Date Posted: April 10, 2008 at 2:15 PM

i am trying to up the voltage of my headlights to try and make them a little brighter.  is this possible by just running a relay with the power source wire of the lights.  it is on a honda civic 87

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you can do it....
advanced MECP, lol does it really matter....
patience is a virtue



Replies:

Posted By: chillin420
Date Posted: April 10, 2008 at 2:30 PM

and need the wiring setup for the relay also... thanks for all the help guys.



-------------
you can do it....
advanced MECP, lol does it really matter....
patience is a virtue




Posted By: i am an idiot
Date Posted: April 11, 2008 at 6:00 AM

Where are you planning to get the extra voltage from?    Are you not going to get tired of changing bulbs monthly?

The title says amperage up, your question was voltage up, the amperage up will be easy.  Which do you want?





Posted By: KPierson
Date Posted: April 11, 2008 at 10:45 AM

You could possibly raise the voltage a slight amount by using thicker cable directly from the battery, through the relay.  The relay would be wired as follows:

Pin 30 - fused wire directly from battery
pin 87 - output to head light (should use two relays for best results)
pin 85 - head light orignial power lead
pin 86 - ground

The goal here is to keep the wire as short as possible to eliminate voltage drop.

There are two ways to increase amperage:

1. Use a bulb with a lower internal resistance (may require rewiring entire system to handle the increased current load)

2. Raise the system voltage.  This may be near impossible, as it wouldn't be practical.  However, if you could get your headlights to run at 16vdc your current will increase.



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Kevin Pierson




Posted By: chillin420
Date Posted: April 11, 2008 at 1:08 PM
i had a customer come in and ask if he could up the power going to his headlights cause they run to dim for him.  was checking for him bu it is  to late now lol..

-------------
you can do it....
advanced MECP, lol does it really matter....
patience is a virtue





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