Lighting controls are input/output devices and systems. The control system receives information, decides what to do with it, and then adjusts lighting power accordingly. Here we see a basic lighting circuit (switch leg). Power travels along the circuit to energize a group of lights.

What are the 4 parts of a lighting control system?

Part 1 looks at four common types of lighting controls: panelboards, dimming controls, addressable controls, and relay-based systems. Lighting control is an effective way to save energy beyond using energy-efficient lighting sources and manual or sensor operated switches.

What is the basic principle of light control?

The change in the velocity of light when it travels from one transparent medium to another is described as refraction. Light appears to have a dual nature. During propagation, light exhibits wave characteristics but when it interacts with matter, it behaves like particles.