The areas of a specified face of the luminaire from which optical radiation is emitted. Multiple emission areas per face are allowed, including rectangular and elliptical shapes. They are intended primarily for use in CIE Unified Glare Rating (UGR) and similar glare calculations.
© 2025 DesignLights Consortium. The DesignLights Consortium is a project of Efficiency Forward, Inc., a non-profit 501(c)3 organization. Privacy Policy Terms of Use