SPT-1, Lamp Cord, Nema 1-15 cord, Zip Cord, Ungrounded Extension Cords, In any terms for it, there is one side of it that's hot and one side that's neutral. Which is it? Doesn't matter? Try unscrewing a lamp from a screw based lamp holder and getting a shock when your fingers touch the lamp's screw shell. Plug something into the cord that is polorized and it's not wired properly such as a dimmer or switch, there can be problems. It matters, there is a universal standard for the center pin of a lamp base to be the hot just as which leg on zip cord is neutral, and without the proper hot leg system, it's impossible to be sure. Add a Taps, and other quick connect outlets and plugs on zip cord are very common in use especially in our industry. They are non-polorized for the most part and this causes constant problems on things that are polarity dependant. At very least if you know which side of the cord goes to the neutral, you will be doing your job in ensuring they are properly powered up so the next person that uses what you set up does not get shocked. Being a lighting person means more than you can pull the shutters on a Leko and focus a beam, it also infers you know something about the craft thus the candy question and my stress on this part of it. However as with the painting question #5, since as of this morning since only two people voted, including myself, this is my last because it still is obvious that out of 327 members, this is not something of interest to the masses.