Dual brightness driving lights

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=18618
Printed Date: May 19, 2024 at 12:21 AM

Topic: Dual brightness driving lights

Posted By: nasty gurl
Subject: Dual brightness driving lights
Date Posted: September 07, 2003 at 4:41 PM

Hi everyone. I was just wondering if there is a very simple circuit that I can make in order to have fog/driving lights on my car and have a switch that allows me to turn them (with a 3 way switch on the dash) between low beam - off - high beam as needed. Is this possible? Can someone please help me out here.

Thank you very much

Replies:

Posted By: TomEllis
Date Posted: September 08, 2003 at 12:52 PM

It would be very easy to do this.
Get a On-OFF-On switch and install a resistor on one leg of the power lead to the light.
You will need to get a resistor big enough to handle to power that the lights will be pulling and the resistor WILL get warm.

Good luck,
Tom
posted_image

Posted By: nasty gurl
Date Posted: September 08, 2003 at 4:47 PM

So if the lights are 12v 55w, what sort of resistor would I need? Thank you

Posted By: bigunner1
Date Posted: September 14, 2003 at 9:17 PM

can you explain a little better as to what you mean by low beam off hi beam?

Posted By: nasty gurl
Date Posted: September 14, 2003 at 10:46 PM

I want to have a 3-way switch on the dash so I can select the fog/driving lights to be either off, half brightness or full brightness.

So in the off position, the lights are off

In the low beam position, the light circuit is closed but with a resistor in series with the lights

In the hi beam position, the light circuit is closed but without a resistor.

Does anyone know what size resistor I will need or even if this will work? Thank you for your help.

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