Thanks Tom.  I am somewhat familiar with diodes and resistor limiting.  This is more in line with what I thought.
Dave b.the Boston one

-----Original Message-----
From: Tom Hargrave <thargrav@HIWAAY.NET>
To: vanagon@GERRY.VANAGON.COM
Sent: Tue, Jan 25, 2022 10:57 pm
Subject: Re: Camper Light power and ground

Any LED diode will have a current limiting resistance in series. This might
be a simple resistor or like in some modern automotive lighting, a constant
current source. Either way, a shorted LED will not cause a short circuit.

Thanks, Tom Hargrave
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-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Dennis Haynes
Sent: Tuesday, January 25, 2022 1:27 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Camper Light power and ground

While not normal it can happen that way. The LED itself is just a diode
which has little resistance in the forward current direction and a driver or
current control is part of the bulb circuit.

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________________________________
From: ddbjorkman@verizon.net <ddbjorkman@verizon.net>
Sent: Tuesday, January 25, 2022 2:08:38 PM
To: d23haynes57@HOTMAIL.COM <d23haynes57@HOTMAIL.COM>;
vanagon@GERRY.VANAGON.COM <vanagon@GERRY.VANAGON.COM>
Subject: Re: Camper Light power and ground

Hi Dennis.  Are you saying that when a LED light fails, it creates a short
circuit, along with all the consequences that go along with it (fried wires,
etc.)?  That doesn't sound correct to me.

Dave B.
the Boston one

-----Original Message-----
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
To: vanagon@GERRY.VANAGON.COM
Sent: Mon, Jan 24, 2022 10:51 pm
Subject: Camper Light power and ground

On the front interior light yes there are 2 ground wires. One is grounded
full time and the other goes to the door switches. For most the rear
interior light is powered from the light over the drivers door and the
ground is piggy backed there also.

At the tray above the light you can pull out that liner and then get to the
wires feeding the light. Just make a new ground. As that wire is really
undersized you could snake a new feed down to the cabinets and connect
there. While LEDs do in fact use less current-power the failure mode is
often a short.

Dennis
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