Electric Question.
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Junior User
Joined: Sep 2007
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Electric Question.
Did some more mods to my 2002 F-250. I had the windows tinted, and added more lights. I put two lights under my bumper and two under my rack facing backward. I hard wired them to the battery. My sub is wired to the battery but i have a fuse in the line. My strobes and the new lights are not fused. SHould i grab power from somewhere else? thanks
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Junior User
Joined: Sep 2007
Posts: 53
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ok. i have alittle bit of electric background but a relay is what and where should i get one and how big. so on and so fourth. I am probably going to fuse the lights to be safe and if you guys could help me out that would be great.
FTE Leadership Emeritus
Joined: Sep 2000
Posts: 23,174
Likes: 1,678
From: Stephensville WI
https://www.ford-trucks.com/forums/7...ches-fire.html
Read this thread, carefully. This is what happens when you don't fuse your power circuits.
This was just gauges. Imagine what that heavy wire you used for the lights will do when it shorts out!
Read this thread, carefully. This is what happens when you don't fuse your power circuits.
This was just gauges. Imagine what that heavy wire you used for the lights will do when it shorts out!
Of the next Riffraff East
Joined: Oct 2004
Posts: 8,679
Likes: 2
From: Concord NC
It's really not confusing at all, once you see it. It allows you to use heavy wire gauge for the lights to battery and a lighter wire for the switch. The switched wire energizes a magnet in the relay that pulls a set of contacts together which connects the battery to the lights. The heavier wire allows for better voltage and less chance of overheating. The smaller wire has very low amp draw since the relay is to only thing on it and less chance of heating up. Plus a smaller wire is nice when running it in the cab area and to the fuse panel. The bad thing about wiring direct to the battery and not through a relay, you have a direct hot wire in the cab of your truck at all times. One side of your switch is hot at all times. I also think your lights will be brighter if a heavyier wire is used with a relay and less wire is needed since the switch is on another wire.
