can any one help????
what amperage does a fog light switch need to be able to handle? and what if it went through a relay?

also what amperage switch for ignition "on" (so to speak) if switched through a relay???

any ideas chaps?
cheers......

Well i think a fog light is about 21W so if you are going to fit two then 42W, P=IV so 42/12=3.5A.

With a relay it can be very little.

Steve

I am only itting one fog light, those numbers you posted look a lot like math to me and my little brain don't do math.....

so only one fog light (21w) the switch would need to have a minimum rating of?

It then would be 21W/12V = 1.75A. I am uncertain for an ignition switch but I would reckon on about 25A.

hope that helps,
Steve

Hi

If your looking for switches from maplins/ rs etc, make sure the amp rating is for a DC voltage

Adrian

all a bit to complicated for me....
so is there any way of working out what i would need if it is advertised as a AC switch?

quote:

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Originally posted by Viper
all a bit to complicated for me....
so is there any way of working out what i would need if it is advertised as a AC switch?

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