I had four 125watt lights with 10gauge wire cuz that is what they called for, but since these are less watts can I go with a 12guage wire? And what size fuse do I use. If I wire them in pairs. I got 4 of the 27 watt LED lights.

 

Everything you need is in the image I updated below. 4x27watts=108 watts / 12 volts = 9 amps so use the chart below.

 

Thanks. Great chart.

 

When in doubt always go larger to be safe and carry the load.


Nice chart BTW, its a shame so many use such small wire for the jobs there trying to do I see it all the time with radios amateur 100-200w ones mostly mobile's.

 

You should just use the harness you had for the 125 watt lights. It wont hurt it a bit if the wire is heavier than it needs to be.