Lighting controllers are devices that use the communication protocol to control and manage lighting systems. Lighting controllers can be used to turn lights on or off, adjust brightness levels, set timers or schedules, and perform other functions related to lighting control. They communicate with lighting fixtures using a digital signal, allowing for precise control of each fixture in the system.

Lighting controllers can be either standalone devices or integrated into a larger building management system (BMS). When integrated into a BMS, lighting controllers can work in conjunction with other building systems, such as HVAC and security systems, to provide more advanced and efficient control of a building's energy use.

Overall, lighting controllers are a popular choice for commercial and industrial lighting applications due to their precise control capabilities and ability to integrate with other building systems. They offer an energy-efficient and flexible solution for controlling lighting systems in a variety of settings.