LED on Pos ground?
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=151388
Printed Date: 18 Jul 2025 at 3:04pm
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Topic: LED on Pos ground?
Posted By: BenGiBoy
Subject: LED on Pos ground?
Date Posted: 19 Jun 2018 at 7:19am
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Ok guys.... so I am looking for another opinion, I guess. Can I wire LED lights into a positive ground tractor? I think that i should be able to, as long as I just hook it up so that the positive side of the light is connected to the 'ground'.... right? (I am wiring a (gasp!     ) JD 630 for a friend, and I was thinking about replacing some of the rusted lights with LED as opposed to original, but I figured that I should make sure that it will work before I ask him and see what he wants.... )Thanks! Ben ------------- '39 Model B Tractors are cheaper than girls, remember that! |
Replies:
Posted By: Stan IL&TN
Date Posted: 19 Jun 2018 at 7:24am
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As long as the led light has two wires and you observe the positive voltage going to the positive wire on the light so if you have a positive ground on the tractor you connect the positive wire on the light to the frame ground on the tractor. You should be good. ------------- 1957 WD45 dad's first AC 1968 one-seventy 1956 F40 Ferguson |
Posted By: BenGiBoy
Date Posted: 19 Jun 2018 at 7:28am
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That's kinda what I thought...thanks for second opinion, much appreciated. I did some looking around and confused myself, but I just realized a moment ago that they were talking about putting a LED 1157 (or whatever) into a socket with a pos ground, it wouldn't work. ~ Ben ------------- '39 Model B Tractors are cheaper than girls, remember that! |
Posted By: jaybmiller
Date Posted: 19 Jun 2018 at 7:39am
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OK, one option that will work, is to 'float' the light base. If you electrically isolate the metal base THEN you can run LEDs on a +ve gnd tractor. I use 1/2" 'plastic' though rubber works fine. The 'trick' is to be sure the light base doesn't connect to the tractor. Jay ------------- 3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
Posted By: BenGiBoy
Date Posted: 19 Jun 2018 at 9:03am
Good idea... If I ever need to run a LED into a base I will have to try that. Thanks, Ben ------------- '39 Model B Tractors are cheaper than girls, remember that! |
jaybmiller wrote: