automatic lights

Lights-out manufacturing is the methodology of fully automating the production of goods at factories and other industrial facilities, such as to require no human presence on-site. Many of these factories are considered to be able to run "with the lights off," but few run exclusively lights-out production. For example, in computer numerical control machining, the presence of human workers is typically required for removing completed parts and setting up tombstones that hold unfinished parts. As the technology necessary for total automation becomes increasingly available, many factories are beginning to use lights-out production between shifts (or as a separate shift) to meet increasing production demand or to save money on labor.
An automatic factory is a place where raw materials enter, and finished products leave with little or no human intervention. One of the earliest descriptions of the automatic factory in fiction was the 1955 short story "Autofac," by Philip K. Dick.

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