IES LM-88-18:2018 Edition

This document describes methods of measurements
for alternating-current-driven light emitting
diodes (AC-LEDs), including AC-LED packages and
AC-LED arrays or modules (see Section 3 for definitions)
that are designed to operate on an AC source
such as a 120-V, 60-Hz main without the need of a
driver. This document provides uniform methods for
operation and measurement of AC-LEDs. It is important
to note that the methods and instruments for
optical measurements are not described in this document;
for such information, the reader is referred to
IES LM-85-14 (see Section 2.1).