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LED fuse indicator light

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=7729
Printed Date: July 21, 2025 at 8:10 PM


Topic: LED fuse indicator light

Posted By: brianh
Subject: LED fuse indicator light
Date Posted: January 06, 2003 at 10:40 AM

I want to make a fuse indicator using LEDS. I think if I put a 12 volt LED in parrallel with the fuse I want to monitior,that it will work alright. If someone could double check me I would appreciate it.  Thanks alot Brian



Replies:

Posted By: TomEllis
Date Posted: January 06, 2003 at 1:22 PM

Brian,

You do NOT want to put the LED in parallel with the fuse, you need to put the positive side of the LED on the load side of the fuse and the ground side of the LED to ground.

It would look like this:

         + 12 Volts---------Fuse-+-----------Load

                                                   LED

           Ground-------------------+-----------Ground

Sorry about the graphics, I could not past the cad drawing that I did.

I hope you get the idea.

Tom




Posted By: brianh
Date Posted: January 06, 2003 at 2:45 PM
I got ya. Thanks for the info Brian


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