An extension, in the context of electrical devices, typically refers to an extension cord or cable that is used to extend the reach of an electrical device or to provide additional outlets. An extension cord is a flexible cord with a plug on one end and one or more outlets on the other end.
Extensions cords can come in various lengths and are available with different numbers of outlets, which can help to increase the range of electrical devices in a particular area. They can be used indoors or outdoors, depending on the type and rating of the cord, and are commonly used for power tools, outdoor lighting, and holiday decorations.