# Thread: Hard wiring LED Ribbon Under Cabinet Lights

1. T74
Junior Member
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Dec 2013
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MA
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## Hard wiring LED Ribbon Under Cabinet Lights

I have some under cabinet lights that are flexible LED linear ribbon. There are 4 sections and there is a remote 12vdc transformer.

I'll probably install the transformer in the basement and run wire to each cabinet section from there.

I'm wondering what other people have used for wiring method for this kind of situation. I have some stranded low voltage #10 but it seems too big for the connectors.

The manufacturer site didn't seem too helpful...

2. T74
Junior Member
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Dec 2013
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MA
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## Wiring Method of LED Ribbon

What are people using for a wiring method for under cabinet LED Linear Ribbon Lights?

This situation will be 4 section of lights with a remote 12vdc transformer in the basement. Each cabinet light section will have a wire down to the transformer.

3. IMO, you need a class 2 wiring method as most of those drivers are class 2. I use a 12/2 class 2 cable. Of course, 12/2 is a bit larger than needed but I have a bunch of it.

4. Junior Member
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Mar 2017
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Glendale Heights, IL (Chicago Land)
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## 2 conductor thermostat wire.

That's what I always use. I do that for 12V and 24V ribbon lights. As long as the runs aren't crazy far and the transformer is properly sized I haven't had issues with voltage drop.

5. gar
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Ann Arbor, Michigan
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170413-2341 EDT

T74:

How much current is required for each strip you plan to power?
How much voltage drop can you tolerate, possibly 1 V?

For the above current calculate total wire resistance. This is for two times the distance from the power supply to the LED strip. Calculate resistance per foot, multiply by 1000 and look in the wire tables for the smallest wire size. Use something larger. Also consider wire current rating.

.

6. T74
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Dec 2013
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I have a class 2 transformer so my understanding is that I can use CL-2 wire for runs in a wall? That might seem obvious but I've never used CL-2 wire so I'm just checking.

7. Member
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Kennewick
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Originally Posted by T74
I have some under cabinet lights that are flexible LED linear ribbon. There are 4 sections and there is a remote 12vdc transformer.

I'll probably install the transformer in the basement and run wire to each cabinet section from there.

I'm wondering what other people have used for wiring method for this kind of situation. I have some stranded low voltage #10 but it seems too big for the connectors.

The manufacturer site didn't seem too helpful...
22-4 it works for the color changing and if not you just parallel the wires.

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8. Member
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Originally Posted by blkmagik21
22-4 it works for the color changing and if not you just parallel the wires.

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Stranded cl2 22-4 to be exact. It's very inexpensive and normally used for security pre wiring.

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9. Member
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Kennewick
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Originally Posted by blkmagik21
Stranded cl2 22-4 to be exact. It's very inexpensive and normally used for security pre wiring.

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But, if you are going to put the transformer that far away, I'd run 16-2 cl2 stranded speaker wire from the transformer to a junction box behind the range or fridge and then run 22-4 or 22-2 from there to avoid voltage drop.

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10. Senior Member
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Nov 2016
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Dublin, GA
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If the cabinets don't go all the way to the ceiling you can put the transformer on top and fish the lv wires behind the cabinets because there is almost always some gaps at the corners or between cabinets.

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