US Patent 9892693 Configurable lighting system

A luminaire can include a housing having at least one outer surface that forms a cavity. The luminaire can also include an aperture that traverses the at least one outer surface of the housing. The luminaire can further include a substrate disposed within the cavity. The luminaire can also include an electrical connector disposed on the substrate adjacent to the aperture. The luminaire can further include a switch coupled to the electrical connector, where switch has multiple positions, where each position of the switch corresponds to a discrete correlated color temperature (CCT) output by multiple light sources of the luminaire.