With CCD-array spectrometer and microprocessor with onboard display, Jaz enables radiometric analysis of LEDs, flat panel displays, lamps, and other radiant sources. Modular optical-sensing instrument allows users to capture, process, and store full spectra without need for any PC. Spectral data can be transferred to laptop or desktop PC for additional post-acquisition processing, such as calculating color temperature, spectral intensity, and color space values.