Question: is 12 gauge wire vs 14?
Answer: 12-Gauge Vs 14-Gauge Wire A larger wire, by virtue of its larger cross-sectional area, generates less resistive heat than a smaller one and can handle more current without overheating. ... A standard 12-gauge copper wire has a diameter of 2.05 mm, while the diameter of 14-gauge copper wire is only 1.63 mm.