The developments in the use of LED technology have led to some misunderstanding about the appropriateness and accuracy of illuminance meters, including misleading claims that measurement readings should be increased to compensate for LED. The purpose of this FactFile is to clarify the facts and dispel some of the myths that have circulated throughout the industry on the subject.
Illuminance meters: the basics
Author: Liz Peck
This is one of the Society of Light and Lighting's series of freely available factfiles, all of which are available here: