PG-1S spectroradiometer and integrating sphere system is applied to LED luminaire and lighting fixture for photometric and colorimetric testing. Generally, it can test LED chips (includes 3014, 3528, 5050, power LED), LED tube, bulb, LED lighting fixture, and also can test spotlight, downlight, ceiling light and etc. The system completely meet the requirements of CIE, GB and LM-79. Test parameters: chromaticity coordinates (x,y, u,v), correlated color temperature (CCT), SDCM, peak wavelength, spetrum distribution, pupil lumen, radiation flux, color shift, color ratio, color purity, luminous flux, rending index, luminous efficiency, power and etc.