This NEMA 5-15 Edison Male plug is UL listed. Safety features include a U-Ground, enclosed screw terminals, and a nylon housing. This Edison cable mount connector is designed for the rigors of stage work and is perfect for repairing extensions, replacing fixture connectors, and building custom power cables. LEX power parts connectors are extremely durable. The nylon body is chemical resistant, and is all black to help it remain invisible onstage. This UL listed connector should be on all of your Edison style cables. This male Edison cable mount connector utilizes the Insulgrip variable size strain relief.