12v wiring

[Msu50000]

We bought a small 12v led hanging light to replace the small "puck" style light above our dinnette.

I removed the puck and there is a black and white wire coming from the ceiling.

The fixture we bought has two LEDs. There is a black wire and two white wires that could/need to be connected.

Do I connect black to black and connect both fuxture whites to white? Or a single fixture white to white?

[babock]

fairfaxjim wrote:

A multimeter is cheap (or free with coupon) at Harbor Freight. They are an indispensable tool for working on RV electrical systems.

My suggestion is skip the free HF multimeters if you want an accurate voltage reading like when checking batteries. I have seen these be off by over a volt so if you just care about if voltage is present or for continuity checks, then you are fine. Myself, I carry a Fluke that I bought off eBay for less than $100.

[Bobbo]

GROUND is GROUND, but I am surprised that they used a bare wire on a 12v fixture.

[Dick_B]

Just slightly off topic but I recently installed a 12V fixture that did not have a white wire; just a bare copper braided wire that took the place of the white from the fixture.

[Msu50000]

They came connected from the factory. Wire nut.

[corvettekent]

It looks like you also have two red wires, both of those will need to be together along with the black wire from the switch.

[Msu50000]

fairfaxjim wrote:

Bobbo wrote:

.....
Or, just use a multimeter to double check which ceiling wire is the hot wire. Hook the hot wire to the black wire on the ceiling light.

A multimeter is cheap (or free with coupon) at Harbor Freight. They are an indispensable tool for working on RV electrical systems.

Undoubtedly, I have one at home just for the TT tool box. Great spot for it to, just need to remember it next time. Ha ha.

I've for the light installed and it looks great.

[fairfaxjim]

Bobbo wrote:

.....
Or, just use a multimeter to double check which ceiling wire is the hot wire. Hook the hot wire to the black wire on the ceiling light.

A multimeter is cheap (or free with coupon) at Harbor Freight. They are an indispensable tool for working on RV electrical systems.

[NanciL]

Chris Bryant wrote:
Yes- black to black, both whites tied together to white.

Yes, that is correct

Jack L

[Bobbo]

That is probably correct and definitely is the first thing to try, but........

If the LED lights won't light, try reversing the ceiling wiring. LED lights are polarity sensitive, and I don't trust RV manufacturers to follow wiring color codes. So, like I said, after wiring, if the lights won't light up, hook the 2 white wires on the lamp to the black wire from the ceiling, and the black wire from the lamp to the white wire from the ceiling.

Or, just use a multimeter to double check which ceiling wire is the hot wire. Hook the hot wire to the black wire on the ceiling light.

[Msu50000]

Awesome thanks.

[Chris_Bryant]

Yes- black to black, both whites tied together to white.

[Msu50000]

Pics of ceiling wires and fixture wires.

Ceiling

Fixture

I'm still a new member so I don't see anyway to attach pics. Let me know if links do not work. Thanks in advance for any input.