IEC 62504:2014有助于共同理解与LED技术一般照明相关的术语和定义。所包括的术语是IEC LED标准中已有的术语或制造商文献中使用的术语。本标准提供了描述性术语（如“LED光源”）和从IEC 60050-845修改的可测量术语（如“显色指数”）。 第一版取消并取代了2011年发布的IEC TS 62504。相对于IEC TS 62504的重大变更如下: a)删除《国际电工词汇》中未经修改的术语； b)已经完成与CIE的对准； c)增加了引言。

IEC 62504:2014 is of assistance in the common understanding of terms and definitions, relevant for general lighting with LED technology. The terms included are those already available in IEC LED standards or used in manufacturers' literature. This standard provides descriptive terms (like "LED light sources") and measurable terms when modified from IEC 60050-845 (like "colour rendering index"). This first edition cancels and replaces the IEC TS 62504 published in 2011. The significant changes with respect to IEC TS 62504 are as follows:
a) Terms from the International Electrotechnical Vocabulary that have not been modified are deleted;
b) Alignment with the CIE has been done;
c) An introduction has been added.