At InPhoCat, we offer photoelectrochemical measurements using a photoelectric spectrometer, equipped with a potentiostat, 10-LED revolver, electrochemical cuvette andvarious  electrode sets. The system is used to measure photocurrents and is perfect for quick control tests of the evaluation of photocatalytic activity. Photocurrents generated by illuminated photocatalysts can be measured as a function of the external potential, the wavelength of the light incident on the sample, or the illuminance. These tests allow, a fast quantitative comparison of the photoactivity of various photocatalysts, in various conditions of exposure to various light sources (LEDs, xenon lamps, specified filters).