The IL RPS-380 Portable Spectroradiometer is a compact instrument that can perform color repeatability and brightness sampling within a few seconds for measuring primary radiance and luminance. Suitable for testing LED display panels and illumination modules, it provides data to yield CRI characterization. Designed for measurements in the 380 nm to 780 nm spectral range with 5 nm to 10 nm resolution, the IL RPS-380 includes Windows® compatible software with CIE chromaticity diagrams, dominant wavelength, and photopic weighting calculations.