One of the simplest ways to conserve energy is to turn lighting systems off in unoccupied areas.

However, accomplishing this task can sometimes be a challenge. Building lighting can be controlled by many methods, from simple – local switches, occupancy sensors, photocells and time clocks – to more elaborate computerized lighting control systems which can be tied in to automatic building mechanical and security system controls.

This fact sheet discusses the various control types and their operation and application.

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