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Rewiring a light fixture, extending a run to a battery box, or just restocking the parts bin, a spool of primary wire is one of those things you don't want to be without mid-project. East Penn's 12-gauge spool gives you a full 100 ft. to work with in one continuous length.
It's stranded copper rather than solid core, so it flexes well in tight RV wiring channels and holds up to vibration on the road better than a stiffer wire would. Black is a common color-code choice for ground or negative runs, but works for any general-purpose 12-gauge job.
Confirm 12-gauge is the right size for your circuit's amperage and run length before installing, since undersized wire on a long run can cause voltage drop.
