ENERGY STAR Recommended Practice - Light Source Flicker

ENERGY STAR? Program Requirements

Product Specification for Lamps:

Light Source

Recommended Rev. December 2015

1 OVERVIEW

This document provides the recommended practice for evaluating flicker with and without a dimmer. This

test can be performed concurrently with the ENERGY STAR Light Output on a Dimmer testing.

2 APPLICABILITY

This recommended practice applies to all CFL and solid-state lamps covered in the scope of the Lamps

specification that are marketed as dimmable.

3 DEFINITIONS

Unless otherwise specified, all terms used in this document are consistent with the definitions in the

ENERGY STAR Eligibility Criteria for Lamps.

operating without a dimmer in the circuit.

The setting on the dimmer or control device intended to achieve the

maximum light output during operation.

The maximum light output (MaxLO) refers to the light output of the lamp when

operating with a dimmer in the circuit with the control at the maximum position.

The minimum light output level of a lamp when operated with a

dimmer in the circuit, as declared by the lamp manufacturer. Typically expressed as a percentage.

The minimum light output (MinLO) refers to the minimum light output when the

lamp is operating with a dimmer in the circuit.

The unit under test (UUT) refers the the specific lamp sample being tested.

4 METHODS OF MEASUREMENT AND REFERENCE DOCUMENTS

4.1 IES Test Methods and Reference Documents

A) IES LM-66-14: 2014. IES Approved Method for Electrical and Photometric Measurements of Single-

Ended Compact Fluorescent Lamps, Illuminating Engineering Society, New York.

B) IES LM-79-08: 2008. IES Approved Method for Electrical and Photometric Measurements of Solid-

State Lighting Products, Illuminating Engineering Society, New York.

C) IES LM-54-12: 2012. IES Guide to Lamp Seasoning, Illuminating Engineering Society, New York.

D) IES RP-16-10: 2010. IES Nomenclature and Definitions for Illuminating Engineering, Illuminating

Engineering Society, New York.

ENERGY?STAR?Program?Requirements?for?Lamps?–?Flicker?Recommended?Practice?(Rev.?Dec‐2015)??Page?1?of?5?

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