LAWRENCE, Mass., Sept. 11, 2012 — The SR-500 and SR-1100 spectroradiometers from Spectral Evolution can validate the class of any commercially available continuous output solar simulator, per IEC 60904-9/ASTM E927-05. The systems are suitable for measuring irradiance and spectral match. They feature reliability, with no moving optics to break down. They are supplied with a right angle diffuser, offer NIST-traceable calibration, feature autoexposure and autoshutter for one-touch operation, and weigh <3 lb. Both systems work with DARWin SP data acquisition and analysis software to capture and show actual irradiance over a 320- to 1100-nm range. Built-in software routines provide class status as a function of wavelength and generate a spectral match report.