The document is a brochure for Lisun Electronics' high precision rotation luminaire goniospectroradiometer models LSG-1700BCC and LSG-1800BCC, detailing their configuration, working principles, specifications, and applications. These instruments are designed for accurate measurement of luminous intensity distribution and photometric parameters in industrial laboratory settings, meeting various international standards. It includes information on the required laboratory environment, system functions, and control software capabilities.