with its core technology patented in USA and China, GO-R5000 FULL-FIELD SPEED GonIOPHOTOMETER is designed for near-field, quasi-far-field and far-field measurement of luminous intensity distribution and total luminous flux of various types of luminaires and lamps. Also, GO-R5000 can realize spatial luminance and color distribution measurement, such as averaged and spatial uniformity of colorimetric parameters. GO-R5000 fully meets the requirements of GB/T 24824-2009 and IESNA LM-79-08.