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post #1 of 22 Old 02-21-2010, 07:08 PM Thread Starter
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back up lights

can i splice a 55w light straight into the reverse light harness? or should i splice in a relay then the relay trigger the light?

i know the safest bet is just to go ahead and run the relay. but would it be ok to do it without one?

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post #2 of 22 Old 02-22-2010, 10:40 AM
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I wouldn't chance it, the relay is the best way to go. There's room behind the left taillight to mount it.

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post #3 of 22 Old 02-22-2010, 12:38 PM Thread Starter
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alright man appreciate it

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post #4 of 22 Old 02-22-2010, 12:55 PM
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the "bestest" way is to run one relay to ground switch another relay so you can run a switch to the dash that also turns on your aux reverse lights


(and some people are going "whut?"
A relay as you know is an electromagnetic switch allowing you to switch larger amounts of power with a very small amount. This way you can run a light amp wire to the switch and not have to worry about frying a switch.

But a relay does not care what it is switching it can switch power OR ground, it just completes that circuit when its electromagnet is powered.
Now this comes into play when wanting multiple switches for 1 item, like reverse lights. A switch to go on in reverse (trans) and a switch on the dash to turn them on anytime. But if you run 2 POS switches to something it will fry something in the process when both are "on" at the same time. But you can multiple ground with no issues. This is how the interior lights in older cars work, the door switch "grounds" and the light comes on.

Lights get constant power, no switch on POS just fuse.

So you run the factory reverse lights to switch one relay, to complete the ground for the lights.
You wire another relay to be switched via switch, to complete the ground for the lights.

So now you can be in reverse (one switch) and have the dash switch on (2 switch) and nothing gets fried as all you have is a better ground.
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post #5 of 22 Old 02-22-2010, 01:33 PM
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use a relay, just splice your reverse light wire to power the relay so when you back up lights come on so will your new lights

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post #6 of 22 Old 02-22-2010, 01:48 PM
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Mine are hooked up to my SPOD and into my reverse light wiring. I can turn them on with a switch and they come on when I put it into reverse.


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post #7 of 22 Old 02-22-2010, 02:44 PM
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Quote:
Originally Posted by SFCCotton View Post
Mine are hooked up to my SPOD and into my reverse light wiring. I can turn them on with a switch and they come on when I put it into reverse.
This is too coincidental. I was just finishing a diagram to better ask my question when I see this thread. So at the risk of being redundant, I want to wire up my LoD reverse lights so that my S-pod switch will enable the LoD lights. I can choose to have the super brights on or not and still remain DOT compliant.

Please see the rudimentary picture for my design. The LoD lights can't function without the factory lights being on.
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post #8 of 22 Old 02-22-2010, 04:37 PM
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I wired my lod reverse light straight in to the reverse lights. I have been running them like that for 7 or so months and no problem. I figured mine don't stay in reverse long so I tried it. One thing I did figure out is that the jeep wires got crossed from the factory. I had to check each one to figure out how to do it. Another words both sides of the wiring didn't match up
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post #9 of 22 Old 02-22-2010, 06:32 PM Thread Starter
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thanks guys, looks like ill be going with the relay for the ground like doc suggested.

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post #10 of 22 Old 02-22-2010, 06:43 PM
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Question

what about something like this?


Last edited by Grant211; 05-02-2010 at 06:14 PM.
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post #11 of 22 Old 02-22-2010, 07:09 PM
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I'm just so disappointed that your rims aren't also yellow. You didn't try hard enough. :-)

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post #12 of 22 Old 02-22-2010, 07:23 PM
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Quote:
Originally Posted by RubiZealot View Post
This is too coincidental. I was just finishing a diagram to better ask my question when I see this thread. So at the risk of being redundant, I want to wire up my LoD reverse lights so that my S-pod switch will enable the LoD lights. I can choose to have the super brights on or not and still remain DOT compliant.

Please see the rudimentary picture for my design. The LoD lights can't function without the factory lights being on.
So does this drawing represent what you are explaining doc? Is doesn't appear to considering you refer to multiple relays.

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post #13 of 22 Old 02-22-2010, 07:32 PM
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Does anyone have any pics of the back up lights hooked up to the reverse lights with the relay?
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post #14 of 22 Old 02-22-2010, 08:43 PM
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here, shitty drawing

either switch grounds the lights and turns them on and both can be turned on with no risk

mine are sealed in a ziplock back behind my drivers side tail light
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post #15 of 22 Old 02-22-2010, 09:33 PM
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Quote:
Originally Posted by H3ATH3N View Post
So does this drawing represent what you are explaining doc? Is doesn't appear to considering you refer to multiple relays.
Doc's solution appears to turn on the lights either if you're in reverse or also when you're not. My solution requires you to be in reverse which is what I think DOT wants. If that's not a hard requirement, this could be a lot simpler.

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post #16 of 22 Old 02-22-2010, 10:12 PM
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Mine have been wired straight to the reverse lights for about a year now and no issues. Done this many times on previous cars etc... Never any issues!

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post #17 of 22 Old 02-23-2010, 09:15 AM
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Quote:
Originally Posted by usmcdoc14 View Post
here, shitty drawing

either switch grounds the lights and turns them on and both can be turned on with no risk

mine are sealed in a ziplock back behind my drivers side tail light
Perfect. Thanks DOC!

Life moves pretty fast. You don't stop and look around once in a while, you could miss it.
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post #18 of 22 Old 02-23-2010, 09:32 AM
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Hey Grant where did you find that light? thanks
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post #19 of 22 Old 02-23-2010, 09:38 AM
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I like Doc's... if some prick has his bright lights on....
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post #20 of 22 Old 02-23-2010, 09:45 AM
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Quote:
Originally Posted by ksjeep View Post
I like Doc's... if some prick has his bright lights on....
Between my lift and my spare, I can't see anyone behind me anyway.

Bright away!

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post #21 of 22 Old 02-23-2010, 09:59 AM
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I am thinking about going with these mounted along the back of my GOBI rack. I like the LED because of their power consumption-light output ratio. Should work, no?

Life moves pretty fast. You don't stop and look around once in a while, you could miss it.
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post #22 of 22 Old 02-23-2010, 04:01 PM
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Quote:
Originally Posted by ksjeep View Post
I like Doc's... if some prick has his bright lights on....
thats the "other" reason main reason is when I am hooking up winch/strap at night or need "on" rear lighting.

The best ones I have found are believe it or not but the cheap ass "utility" rubber housing round lights from Harbor Freight They have good flood and are durable. And when you back one into a tree you do not feel bad
http://www.harborfreight.com/cpi/cta...emnumber=93904

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