Comparison of Photometric and Chromaticity Characteristic for LED Lighting Products
SUN Xuejiao
ZHAO Lixia
GANEV Hristo
WAGNER Max
KHANH Tran Quoc
Abstract：To investigate the measurement deviation of LED lamps and luminaires between China and Germany and improve the common LED lighting measurement standard and test procedure, we have promoted comparison measurements for LED lighting products among six laboratories. The most commercially used retrofit lamps, downlights and streetlights were measured and compared. Although using different test instruments from different manufacturers, different methodology and calibration routine, traced to the national standard of their own country, the results show that the test deviation for luminous flux is about ±5 ％ and the CCT deviation is less than ±250 K. The results suggest that as long as the measurement equipment is calibrated regularly and with the similar burn-in and testing procedures, the test deviation is within the acceptable range for quality control of manufacturing process and the international trade.
Keywords：comparisonLED lamps and luminairestest deviation
Publication Date：2019-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 19-23,38 )