These keyed 2-conductor light sockets are a great way to dress up CCC's cloth covered wire sold by the foot. These 2-conductor cords are compatible with CCC 3-conductor wire if the green ground wire is clipped and left unused in the assembly. The socket has a turn key switch to turn on and off your diy light. Use it with an exposed Edison bulb for an early 1900's era feel. If you would like to assemble a socket and cord for a hardwired lighting application, please consult a licensed electrician or ask Von Walter & Funk about their lamp re-wiring services.