Designed to be tailored to exactly meet user requirements, these complex switch-related assembly modules can can incorporate a number of different functions and components. For example, they can include switches, potentiometers, annunciators, and other related components. The entire switch assembly is encased in an integrated enclosure, wired to connectors for easy installation, and mounted onto an illuminated panel. The assembled units are tested and certified to user specs prior to shipping. Applications are aerospace and avionics.