This CIE International Standard S 025/E 2015 provides the requirements to perform reproducible photometric and colorimetric measurements on LED lamps, modules, and luminaires. It also provides advice for reporting this data. The availability of reliable and accurate photometric data for LED devices is a basic requirement for designing good lighting systems and evaluating performance of products. By obtaining these data through measurements in specific, normalised measuring conditions, consistency of the data should be ensured between different laboratories (within the limits of the declared measurement uncertainty) and comparison of different products on the same basis is possible. The standard specifies the requirements for measurement of electrical, photometric, and colorimetric quantities of LED lamps, modules and luminaires for operation with AC or DC supply voltages, possibly with associated LED controlgear. LED light engines are assimilated to LED modules and handled accordingly.
Contact Natasha Nel Sakharova, NMISA, Tel 012 841-3618, nnelsakharova@nmisa.org