A Deep Junction Box is a type of electrical junction box that provides a large, enclosed space for making electrical connections. A junction box is a container for electrical connections, designed to protect the connections from damage and provide a safe place for making and terminating electrical wires. Deep junction boxes are called deep because they have a greater depth than standard junction boxes, allowing for more room to accommodate a larger number of wires or larger connectors. They are typically made of metal or plastic and are used in a variety of electrical applications, such as wiring for lighting fixtures, switches, and outlets. Deep Junction Box is commonly used in commercial and industrial buildings, as well as in residential construction. The depth of a deep junction box is designed to meet specific electrical code requirements and to accommodate the wiring needs of the specific application.