Looking for recommendations for rear mounted work light

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Originally Posted by trout1105

For a start Most relays ARE now sealed and I have never heard about self cleaning contacts on a relay and if you are paying to have the contacts cleaned (wiped) on a modern relay you are getting ripped off.

On the old school relays they had a set of contacts not unlike a set of ignition points and these Did benefit a clean periodically But we are in the 21st century and these types of older style relays only exist on cars 6+ decades old.

You mob wire up the way you want to it doesn't matter to me, Just make sure you fire extinguisher is handy[bigwhistle]

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wipe contacts is where on closing they are designed to move across there surfaces thus are called WIPED and are designed for low voltage 0-5 volt or low current closing .

where as the relays you are talking about are spring loaded and if dust gets on them an arc is caused by the current to make contact

no need for the fire extinguisher just rely on years of in the trade all horses for courses

I simplified it up a little for the rest of us to follow with relay numbering for anyone who builds it, but no PC drawing skills so by hand it is


Attachment 175078

@reefmagnet, nice circuit but it did me over a bit following the paths coz you put the battery in the loop !

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Originally Posted by trout1105

If you think a 10a fuse will stop a 3a switch from melting/burning in the dash then good luck to you.
Like I said you do what you want on your own vehicle But it will snow in hell before I would let you touch my wireing on my D2a[bigwhistle]

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Who in there right mind would put a 3A switch in a circuit with a 10A protective device? [emoji848]
The protective device is to protect everything downstream of it thats under load.
It will snow in hell before i would want to work on a d2 anyway[emoji846]

Wow. come back to this thinking there'd be install pics and instead find an argument over pointless minutae.

c'mon people... there are far more important things to worry about than how to wire up an LED.

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Originally Posted by Mercguy

Wow. come back to this thinking there'd be install pics and instead find an argument over pointless minutae.

c'mon people... there are far more important things to worry about than how to wire up an LED.

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It's called 'robust discussion' [biggrin]and there are recommendations for lights and 2 suitable circuits given for people to use if they choose.

But yeah, where's the bloody pics ?? Piccy worth a thousand words (or will cause a thousand words discussing it)