What is DMX?
In short, it's a system of controlling "intelligent" lighting fixtures and dimmers.
Technically, DMX is an abbreviation for DMX512-A, the ESTA (Entertainment Services Technology Association) Standard for controlling lighting equipment and related accessories.
A wide variety of lighting control consoles, controllers and other devices that output DMX signals can be used to connect to an even greater variety of lighting fixtures and accessories that can be controlled by DMX. DMX controlled lighting systems are used in many professional settings, including concert lighting, stage lighting, studio lighting, theme park attractions, and much more.
In recent years, the DMX standard is being used more frequently in Architectural lighting projects, including illumination of building exteriors, accent lighting, general purpose building management and high-end residential lighting. This is due primarily to the high popularity of LED based lighting fixtures, which are frequently controlled via DMX signals.