SOLAR LIGHT CO.

measuring equipment for scientific, commercial and industrial use, namely, sunphotometers, [ ozonometers, ] ultraviolet light meters, radiant power meters, [ spectrophotometers, ] spectroradiometers [, calorimeters ] for measuring visible, ultraviolet or infra-red radiation [; irradiation equipment for scientific, commercial and industrial use, namely, irradiators simulating solar ultraviolet radiation for irradiating biological materials and testing for colorfastness ]