led marker 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=91663
Printed Date: May 11, 2025 at 9:56 PM

Topic: led marker lights

Posted By: rtm038
Subject: led marker lights
Date Posted: March 13, 2007 at 5:11 PM

Hello all,

I have a 2006 Ford F-350 Crew Cab and I'm planning on putting (3) 12-LED amber marker lights on each side, under the doors. In addition to being marker lights, I plan to make them flash with OEM turn signals. I've done some research and in another topic/post, someone recommended using a relay wired between the flasher and marker light feeds (relay grounds through the filaments) apply power the LEDs. I did a test set-up using this method and it worked perfect. However, I'd rather not use electromechanical relays because they can be noisy, so I'm wondering if I can use solid-state relays in the same manner (wired between the flasher and marker light feeds).

Thanks,

Ryan

Replies:

Posted By: KarTuneMan
Date Posted: March 23, 2007 at 12:53 PM

Another concern....resistance. The LED's have next to NONE. Your flasher will go nuts.

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Posted By: rtm038
Date Posted: March 24, 2007 at 11:38 AM

I actually got it to work using a resistor on the marker light feed. However, I rewired my relays to only light the LEDs lights when the marker lights/headlights are on. I wasn't sure sure about heat build-up with the resistors, plus I didn't use a diode on the "shared" (one marker light feed powers both sides) marker light feed and I was getting feedback to the opposite side when one side was flashing. Anyway, it's still a work in progress.

Thanks for the response,

Ryan