Abstract: New high-performance, highly tunable photophosphors are presented. These photophosphor's pump spectra and emission spectra are both manipulated via variances in the formulation of compounds taught herein. In addition, new combinations of semiconductor devices in conjunction with these optically active materials are described. In particular, light emitting semiconductors fashioned as diodes from indium gallium nitride construction are combined with these photophosphors. High-energy short wavelength light mixes with the longer wavelengths light emitted by the halogen-silicate photophosphor to produce a broad spectrum perceived by human observers as “white light”.