I recently got a 277 volt LED track lighting set and we are trying to figure out how to power it up. It had a three prong lock-in end to it that I didn't understand so we tried to change it to a normal one and plug it in to a socket at home. Just as we thought, it did not work. I was told by someone that we need a transformer or something but I don't know. If anyone can help that would be great!