Abstract: A circuit module comprises a housing enclosing a printed circuit board designed to be adaptable to a variety of standard wiring applications. The printed circuit board includes plural conducting paths, some of which may be selectively coupled via a shorting bar to adapt the circuit module to the various wiring applications. The module has various electrical junctions and ports which are provided in the housing and are adapted to be releasably connected to a source of power and to a standard electrical load, such as a lamp or switch. The modules can be interconnected whereby, for example, a module joined to a lamp may be wired to another module connected to a switch.