Bought 2 sets of US puck lights, website says you need adapter/power supply for multiple sets, totally inaccurate description on website. The components aren't even compatible, the wires don't plug into each other, nothing fits, incompatible. $250 down the drain. American Lighting is not the company you want to use. I spoke to their support team, they do not make cable extenders and they do not acknowledge that the parts they recommend are incompatible. You won't help at all. I do not recommend