Evrogen Spectra Viewer
The Spectra Viewer tool allows one to compare the spectra of Evrogen basic fluorescent proteins and calculating their excitation and emission efficiencies at different wavelengths.
User Guide

Choose between normalized and non-normalized data presentation. Non-normalized view allows one to compare the excitation and emission efficiencies of different FPs between each other within the selected wavelength range. Normalized view shows the relative efficiencies of excitation and emission within the selected wavelength range for each particular reporter.

Non-normalized spectra Normalized spectra 
Wide-field Laser