The wire looks nice and is 12 gauge. However, the wire seems to be primarily silver and not copper. When you cut it you can see a slight copper tinge to it but that's it. Also when you solder this stuff you need to be careful because the blue coating is more plastic than silicone and will melt. I used a 60w iron and melted it when soldering to the motor. I now have nice needlenose plier marks permanently in the casing because it started melting while gently holding it in place.