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Unread 12-22-2008, 05:49 PM   #1
Motorcharge
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Wiring Question - Foglights

Right now my XJs got 2 wally world foglights mounted on the roof rack.





I bought 2 more today, could I mount the 2 new ones and wire them to the existing wiring or would I have to just wire the new ones to a 2nd switch and everything?

Top is current wiring, bottom is what I'm thinking:



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Unread 12-22-2008, 06:24 PM   #2
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Use a relay and a fuse unless you have a really fast local fire department. See the link below. You can use 2 relays, one per pair of lights. If you can find a big enough relay and fuse, one might be enough.

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http://www.classictruckshop.com/club...h/foglites.htm



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Unread 12-22-2008, 07:43 PM   #3
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just make sure you're using 12ga wire and a good relay
should be fine
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Unread 12-22-2008, 09:24 PM   #4
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RVA, there's a pretty good write-up with a nice pic here: http://www.jeepforum.com/forum/f20/wire-fuse-size-relay-explanations-378268/
To give you an idea how much current you're going to be dealing with, a 55 watt lamp draws 4.6 amps and a 100 watter needs 8.3, so 4 - 55's need almost 20A and 4 -100's need close to 35A.
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Unread 12-23-2008, 07:25 AM   #5
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As chris87xj stated find out the wattage of the Lights and you can determine the full current needed to operate them safely. Once you know the total current you can buy the correct relays, the correct wire size and fuses.

Always use a fuse next to the battery, always oversize the wire for safety reasons and as I like to do always run your ground wires back to the battery.

Two lights per relay is standard practice, you can operate the two relays with one switch if you want and you can get a large enough relay you can hook up al of the lights together; but when on the road/trail and the relay fails you lose all of your lights...

Find out the Wattage of the existing lamps and the new ones you want to hook up, then you can determine the correct size of all of the components.

Ltr,
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Last edited by rustywrangler; 12-23-2008 at 08:48 AM.. Reason: fixed small mixup
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Unread 12-23-2008, 08:20 AM   #6
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Quote:
Originally Posted by Scrambler82 View Post
As chris87xj stated find out the wattage of the Lights and you can determine the full current needed to operate them safely. Once you know the total current you can buy the correct relays, the correct wire size and fuses.

Always use a fuse next to the battery, always oversize the wire for safety reasons and as I like to do always run your ground wires back to the battery.

Two lights per relay is standard practice, you can operate the two relays with one switch if you want and you can get a large enough relay you can hook up al of the lights together; but when on the road/trail and the relay fails you lose all of your lights...

Find out the Wattage of the existing lamps and the new ones you want to hook up, then you can determine the correct size of all of the components.

Ltr,
Merry Christmas
fixed it for ya
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Unread 12-23-2008, 08:51 AM   #7
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Originally Posted by Scrambler82 View Post
Find out the Wattage of the existing lamps and the new ones you want to hook up, then you can determine the correct size of all of the components.

Those are the walmart special baja offroad lights. 55W each.
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Unread 12-23-2008, 08:52 AM   #8
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fixed it for ya
So did I
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Unread 12-23-2008, 08:57 AM   #9
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So did I
Hey no problem, it was kind of confusing there for a minute.

Question though while I've got your attention, what's with all the green highlighted advertisement links that appeared in the posts above? Is this something I've just not noticed before or did somebody get creative?
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Unread 12-23-2008, 09:17 AM   #10
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just run two switchs, make your life easy. remember fuses! if you wanna i know my local advanced sells a little fuse lock. you run a 10 gadge wire to it, and it gives you six terrminals each with a 30 amp fuse, they make life very easy. i have 2 on my jeep for all my doo dads
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Unread 12-23-2008, 09:18 AM   #11
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just run two switchs, make your life easy. remember fuses! if you wanna i know my local advanced sells a little fuse lock. you run a 10 gadge wire to it, and it gives you six terrminals each with a 30 amp fuse, they make life very easy. i have 2 on my jeep for all my doo dads
Very easy way to burn your jeep down man.

for that many lights, even at 55watts, he really should have relays.
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Unread 12-23-2008, 09:19 AM   #12
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Hey no problem, it was kind of confusing there for a minute.

Question though while I've got your attention, what's with all the green highlighted advertisement links that appeared in the posts above? Is this something I've just not noticed before or did somebody get creative?
Send me a PM with a screen shot. I do not see the advertisements as a mod.
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Unread 12-23-2008, 10:15 AM   #13
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Yup, just use a relay...

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Unread 12-23-2008, 12:36 PM   #14
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Yeah, they're the 55w walmart bajas.
Also, on the 2 I have hooked up there is a fuse on the red line, just forgot to stick it on the diagram.
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Unread 12-23-2008, 12:43 PM   #15
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Yeah, they're the 55w walmart bajas.
Also, on the 2 I have hooked up there is a fuse on the red line, just forgot to stick it on the diagram.
Did you use the wiring that came with the kit??? IF so, DO NOT add two more lights to that. Some of that wiring is only 16 gauge going to the lights The situation your in, regardless of what you have it wired with now is your going to overload the lines running all 4.
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