An electrical system (60, 200) for a tent or shelter (98, 201). Wires (60) are routed through a tent or shelter (98, 201) either by attaching the wires to the tent or shelter, running the wires through hems, seams (100), or sleeves, or integrating the wires into the fabric for the tent or shelter. In accordance with an embodiment, an appliance (208) is connected to the wiring harness (60) and is mounted or attached in the tent or shelter. The appliance (208) may be mounted in a socket (234) that includes contacts that may engage a fixture or appliance, such as a light. An opposite end of a cord (222) leading to the socket is attachable to an electrical power supply, such as a battery pack (203).