Abstract: A modular low voltage power distribution and lighting system that contains a series of components that allow easy installation by means of these compatible modular components to provide low voltage power, less than 30 volts, throughout a given space. The system is based on the use of one or more transformers providing electrical power to one or more electrical circuits running through a series of compatible tubular fixture housings, and related components, to a series of female receptacles located at predetermined locations along the outside surface of the tubular fixture housing. The system may incorporate one or more lampholder devices that attach to the tubular fixture housing and obtain low voltage power from any of the female receptacles. The lampholders contain a series of rings that retain the lamp and accessories by means of flat rings held under pressure in slotted plates between the arms of the lampholder frame.