A system for treating a light treatable condition may include a luminaire configured to emit diagnostic output spectra and a sensor configured to measure a biotic response to the diagnostic output spectra. A computer may be positioned in electrical communication with each of the luminaire and the sensor and may utilize a measured biotic response to determine prescribed output spectra that is responsive to treat the light treatable condition. The luminaire may also be configurable to emit the prescribed output spectra by receiving an instruction from the computer.
