Hey. So I have this light fixture that I needed to shorten the cable. There's only two wires and upon inspection before cutting they both seemed to be the same so I was hoping that once I strip it from the main casing one of them would be ribbed indicating it as neutral. However that's not the case. After striping both wires a bit more noticed that one of them has a white strand of thread inside. That is the only difference that I can see. Anyone seen anything like this and maybe someone could help. Which wire is witch? Sorry I am a bit of a novice at these things. Any help appreciated.