本文件是2017年发布的IES RP-2-17的修订版。它包括关于当前照明技术和自那以后引入的新照明技术的信息。本文件是为具有不同零售照明设计经验的设计师编写的。它强调照明质量和能源效率，并深入讨论了照明系统和各种零售应用中照明商品展示所必需的标准。因此，它的目的是作为良好的零售和商品照明的基础。它提供了水平和垂直照度水平以及均匀性建议。

This document is a revision of IES RP-2-17, published in 2017. It includes information on current lighting techniques and new lighting technology introduced since that date. This document was written for designers with varying levels of experience in retail lighting design. It emphasizes lighting quality and energy efficiency and provides an in-depth discussion of the lighting system and the criteria essential to lighting merchandise displays in a variety of retail applications. As such, it is intended to serve as a foundation for good retail and merchandise lighting. It provides recommendations for both horizontal and vertical illuminance levels as well as uniformity recommendations.