This software performs Franck-Condon Lineshape Analysis (FCLSA) of photoluminescence spectra, which provides enhanced information about the excited states of the studied molecule. These parameters include the energy gap, the quantum spacing of the associated excited states, the band broadening, and the electronic-vibrational coupling constant also known as the Huang-Rhys factor.

In addition, the software performs common operations and analyses such as: data normalization; conversion from wavelength to wavenumber scales with appropriate intensity correction; CIE color coordinate determination; prediction of sample emission color in RGB space; and calculation of excited state energy. The software is capable of handling a wide variety of input files, performs several automatic analyses such as determining peak wavelength, and can export the results in multiple formats suitable for publication or further data analysis.