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Ulbrich's sphere in the Gamma Scientific Laboratoryhttps://www.led-professional.com/media/business_company-information_gamma-scientific-awarded-ies-lm-80-accreditation-for-led-life-testing_Ulbrichs%20sphere%20in%20the%20Gamma%20Scientific%20Laboratory.jpg/viewhttps://www.led-professional.com/media/business_company-information_gamma-scientific-awarded-ies-lm-80-accreditation-for-led-life-testing_Ulbrichs%20sphere%20in%20the%20Gamma%20Scientific%20Laboratory.jpg/@@images/image-1200-de401d1378e942dafab7a40e3b2d504d.jpeg
Ulbrich's sphere in the Gamma Scientific Laboratory
