A lighting apparatus comprising a plurality of luminaires, each luminaire comprising a controller configured to operate the luminaire and positioned in communication with a computerized device. Each luminaire may be selectively operable to emit source light characterized by a dominant source light wavelength within a range from 390 nanometers to 750 nanometers. Additionally, at least two of the plurality of luminaires may be operable to emit source lights with different dominant source light wavelengths, and such that one or more source lights emitted by the plurality of luminaires may combine to form a combined light at a distance from the plurality of luminaires defined as a combining distance. Furthermore, the dominant source light wavelength of at least some of the luminaires of the plurality of luminaires may be variable with time.