Which wire (+/-) gets inline switch?
- Thread starter hayze
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Doesnt really matter, I usually switch power but have heard a lot that you should switch the neg.
PS a lot of people go in after the fuse panel because its not really smart to connect anything directly to the battery from what I hear. (splice into one with just a little bit more amps than the light draws. like if it is a 3.5a lite I would put it on a 5a fuse.
PS a lot of people go in after the fuse panel because its not really smart to connect anything directly to the battery from what I hear. (splice into one with just a little bit more amps than the light draws. like if it is a 3.5a lite I would put it on a 5a fuse.
LukeA
Flashlight Enthusiast
Neg is where the electrons come from.
The stock lights in my car are switched on Neg (which is why they wouldn't turn off when I initially modified them and grounded to the frame).
The stock lights in my car are switched on Neg (which is why they wouldn't turn off when I initially modified them and grounded to the frame).
buickid
Enlightened
Not sure which to put the switch on, but I know that you always fuse on the positive, as close to the source of power (battery, alternator, etc) as practical. Less unfused wire means less chance of an electrical fire from a short. I'd probably put the switch on the positive terminal by this theory too, but I'm not 100% "positive" 
Ken_McE
Flashlight Enthusiast
- Joined
- Jun 16, 2003
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When using an inline switch with a self-installed car light, which wire (positive or negative) gets the switch?
Switch goes on the positive side.
Does it matter?
Functionally, no. The electrons don't care.
ALSO, please tell me why
Tradition. It simplifies things when everything is switched the same. We didn't used to know which way the electrons were actually going, so we just picked a side and went with it. When everything in the car is switched the same you don't have to stop and ponder about what you're doing.
Switch goes on the positive side.
Does it matter?
Functionally, no. The electrons don't care.
ALSO, please tell me why
Tradition. It simplifies things when everything is switched the same. We didn't used to know which way the electrons were actually going, so we just picked a side and went with it. When everything in the car is switched the same you don't have to stop and ponder about what you're doing.
