12v led wiring
I'm trying to figure out how to wire a led strip inside my pass through compartment that has a push button to turn on the light when you open either door.Do I need to run wires from one side to the ot...
Forum Discussion
tenbear wrote:GordonThree wrote:tenbear wrote:Ivylog wrote:
Chris is saying to power it from both ends with simple on/off switchs. Put 12V to the red leads.
You probably should power each end from the same 12v circuit. If not, when you open the doors on both sides two 12v circuits will be shorted together.
that's not a problem, unless your RV has some really weird setup where there are two different 12v systems that don't share a ground somehow.
voltage is potential and nothing more, you could have 10 12v batteries connected to the LED strip, as long as their grounds were all connected, it's still just 12v.
If you use 2 different 12v circuits you are putting 2 fuses in parallel when both doors are open. Thus the circuits have too large a fuse for the wiring. Also if one of the circuits has a large current drain, the current will be divided between the two fuses and some of the current will be flowing in the small wiring on the light strip. IMHO, not a good idea.
Good point- a single hot and switched grounds is the way to go- how they used to go the auto dome lights.
