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Skip Navigation HomeHelpResourcesContact Us Advanced Search Start of Main Content 2014-06-26 Energy Conservation Program: Test Procedures for Integrated Light- Emitting Diode Lamps; Supplemental notice of proposed rulemaking. This Proposed Rule document was issued by the Energy Efficiency and Renewable Energy Office (EERE) For related information, Open Docket Folder Show agency attachment(s) DEPARTMENT OF ENERGY
SummaryOn June 3, 2014, the U.S. Department of Energy (DOE) published a supplemental notice of proposed rulemaking (SNOPR) (hereafter the June 2014 SNOPR) in which DOE proposed test procedures for light-emitting diode (LED) lamps. The June 2014 SNOPR defined methods for measuring the lumen output, input power, and relative spectral distribution (to determine correlated color temperature, or CCT). Further, the June 2014 SNOPR proposed a method for calculating the lifetime of LED lamps, and defined the lifetime as the time required for the LED lamp to reach a lumen maintenance of 70 percent (that is, 70 percent of initial light output). Additionally, the June 2014 SNOPR added calculations for lamp efficacy as well as the color rendering index (CRI) of LED lamps. This SNOPR revises DOE's proposed definition for lifetime in the June 2014 SNOPR. The definition of lifetime contained in this document better aligns with the statutory definition of lifetime in the Energy Policy and Conservation Act of 1975, as amended. DOE also proposes a new definition for time to failure to support the revised definition of lifetime. Finally, this SNOPR discusses other necessary changes to the regulations to support the new and revised definitions.
DatesDOE will accept comments, data, and information regarding this SNOPR until August 4, 2014. See section V, “Public Participation,” for details.
AddressesAny comments submitted must identify the SNOPR for Test Procedures for LED lamps, and provide docket number EE-2011-BT-TP-0071 and/or regulatory information number (RIN) number 1904-AC67. Comments may be submitted using any of the following methods:
A link to the docket Web page can be found at: www1.eere.energy.gov/buildings/appliance_standards/rulemaking.aspx/ruleid/18. This Web page will contain a link to the docket for this notice on the regulations.gov site. The regulations.gov Web page contains simple instructions on how to access all documents, including public comments, in the docket. See section V for information on how to submit comments through regulations.gov.
For further information on how to submit a comment, review other public comments and the docket, or participate in the public meeting, contact Ms. Brenda Edwards at (202) 586-2945 or by email: Brenda.Edwards@ee.doe.gov. For Further Information ContactMs. Lucy deButts, U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Building Technologies Office, EE-5B, 1000 Independence Avenue SW., Washington, DC 20585-0121. Telephone: (202) 287-1604. Email: light_emitting_diodes@ee.doe.gov. Ms. Celia Sher, U.S. Department of Energy, Office of the General Counsel, GC-71, 1000 Independence Avenue SW., Washington, DC 20585-0121. Telephone: (202) 287-6122. Email: Celia.Sher@hq.doe.gov. Supplementary InformationTable of ContentsI. Authority and Background
VI. Approval of the Office of the SecretaryI. Authority and BackgroundTitle III of the Energy Policy and Conservation Act of 1975 (42 U.S.C. 6291, et seq.; “EPCA”) sets forth a variety of provisions designed to improve energy efficiency. (All references to EPCA refer to the statute as amended through the American Energy Manufacturing Technical Corrections Act (AEMTCA), Public Law 112-210 (Dec. 18, 2012)). Part B of title III, which for editorial reasons was redesignated as Part A upon incorporation into the U.S. Code (42 U.S.C. 6291-6309, as codified), establishes the “Energy Conservation Program for Consumer Products Other Than Automobiles.”
DOE previously published twoFederal Registerdocuments pertaining to the test procedure for LED lamps. On April 9, 2012, DOE published a test procedure NOPR. 77 FR 21038. Following the publication of the NOPR, DOE held a public meeting on May 3, 2012 to receive feedback from interested parties. Then, on June 3, 2014, DOE published a test procedure SNOPR (the June 2014 SNOPR). 79 FR 32020. The June 2014 SNOPR revised the method of measuring lifetime and added directions for calculating and measuring lamp efficacy, CRI, and standby mode power.
For a more complete discussion of authority and background, see the June 2014 SNOPR. 79 FR 32020.II. Summary of the Supplemental Notice of Proposed RulemakingThis SNOPR (hereafter the lifetime SNOPR) builds upon the June 2014 SNOPR, which DOE hereby affirms, except for those provisions that are modified by this supplemental proposal. The lifetime SNOPR proposes to revise the definition of lifetime as it relates to LED lamps. The definition of lifetime contained in this notice better aligns with the EPCA definition of lifetime in 42 U.S.C. 6291(30)(P). DOE also proposes a new definition for time to failure to support the revised definition of lifetime. The lifetime SNOPR describes these new definitions and discusses other necessary changes to 10 CFR parts 429 and 430 to support the new and revised definitions.III. DiscussionA. Definition of Lifetime of Integrated Light-Emitting Diode LampsIn the June 2014 SNOPR, DOE proposed to define lifetime of LED lamps as the time at which the lumen output is equal to 70 percent of the initial lumen output. 79 FR at 32029. This definition was to appear in Appendix BB to subpart B of 10 CFR part 430, and was to be measured and calculated for each individual sample unit. 79 FR at 32047. DOE also proposed a mechanism to determine the upper limit for the represented value of lifetime for a basic model based on the mean or lower confidence limit of the sample at 10 CFR 429.56(a)(1)(i)(B)(1). See 79 FR at 32045.
DOE proposes revising the name of the metric from “lifetime,” to “lifetime of integrated light-emitting diode lamps.” DOE proposes defining the lifetime of integrated light-emitting diode lamps to be as follows: “the length of operating time between first use and failure of 50 percent of the sample units (as defined in § 429.56(a)(1)(i)), in accordance with the test procedures described in section 4.5 of Appendix BB to subpart B of part 430 of this chapter.” DOE's proposed definition is consistent with the statutory definition of lifetime in EPCA. First, DOE specifies a statistically large group of lamps by referring to the represented value requirements in section 429.56(a)(1)(i). Second, the test procedure in section 4.5 of appendix BB to subpart B of part 430 refers to IES LM-79-2008 for test conditions, setup, and measurements. The references to IES LM-79-2008 are consistent with EPCA's lifetime definition, which requires use of the test procedures described by the IES. DOE seeks comment on the proposed definition of lifetime of integrated light-emitting diode lamps.B. Definition of Time to FailureTo support the revised definition of lifetime as applied to LED lamps, DOE also proposes to define time to failure for LED lamps in Appendix BB to subpart B of 10 CFR part 430. The revised definition of lifetime refers to the “failure” of a lamp. Failure in the context of compact fluorescent lamps (CFLs), for example, is the time at which the lamp fully extinguishes and no longer creates light. However, LED lamps typically exhibit gradual degradation of light output over a longperiod of time, rather than a sudden loss of light output. While other criteria may also apply, lumen maintenance of 70 percent is generally accepted as a criterion of reaching the end of useful LED lamp lifetime. 79 FR at 32029. DOE proposes to treat the point in time where an individual LED lamp reaches 70 percent lumen maintenance as the point of “failure.”
In order to calculate the lifetime of integrated light-emitting diode lamps for a particular basic model, the tester must determine the length of time between first use and failure for each unit in the sample. Therefore, DOE proposes to define time to failure, in section 2.2 of Appendix BB to subpart B of 10 CFR part 430, as “the time elapsed between first use and the point at which the lamp reaches 70 percent lumen maintenance as measured in section 4.5 of appendix BB of this subpart.” DOE seeks comment on the proposed definition of time to failure.C. Other Revisions to 10 CFR Parts 429 and 430To support the revised definition of lifetime and the newly added definition of time to failure, DOE also proposes other modifications to 10 CFR parts 429 and 430. These revisions clarify that the metric “time to failure” would be measured for an individual lamp, while “lifetime of integrated light-emitting diode lamps” is a metric calculated for all sample units collectively. For example, DOE modifies the scope and content of Appendix BB to subpart B of 10 CFR part 430 (See Appendix BB at sections 1, 2.2, 4, 4.2.1, 4.5, 4.5.2, 4.5.3, 4.5.4), 10 CFR 430.23 (See section 430.23(dd)(6), and (7)), and 10 CFR 430.25 (See section 430.25(b)) to specify measurement of time to failure, rather than directly measuring lifetime. Then, in proposed 10 CFR 429.56, DOE specifies the calculation of lifetime of integrated light-emitting diode lamps, the metric used for representations based on all sample units collectively (See 429.56(a)(1)(i)(B)(1), (a)(1)(i)(B)(1)(ii), (a)(1)(i)(B)(4), (c), and (c)(6)).IV. Procedural Issues and Regulatory ReviewDOE has concluded that the determinations made pursuant to the various procedural requirements applicable to the June 2014 SNOPR remain unchanged for this lifetime SNOPR. These determinations are set forth in the June 2014 SNOPR. 79 FR 32020, 32040-32044. The additional changes proposed in this lifetime SNOPR (a revised definition of lifetime, a new definition of time to failure, and other supporting modifications) would not be expected to increase testing burden beyond what is specified in the June 2014 SNOPR.V. Public ParticipationA. Submission of CommentsDOE will accept comments, data, and information regarding this proposed rule no later than the date provided in theDATESsection at the beginning of this proposed rule. Interested parties may submit comments using any of the methods described in theADDRESSESsection at the beginning of this proposed rule.
Factors of interest to DOE when evaluating requests to treat submitted information as confidential include: (1)A description of the items; (2) whether and why such items are customarily treated as confidential within the industry; (3) whether the information is generally known by or available from other sources; (4) whether the information has previously been made available to others without obligation concerning its confidentiality; (5) an explanation of the competitive injury to the submitting person which would result from public disclosure; (6) when such information might lose its confidential character due to the passage of time; and (7) why disclosure of the information would be contrary to the public interest.
2. DOE seeks comment on the proposed definition of time to failure.VI. Approval of the Office of the SecretaryThe Secretary of Energy has approved publication of this proposed rule.
For the reasons stated in the preamble, DOE is proposing to amend parts 429 and 430 of Chapter II of Title 10, Subchapter D of the Code of Federal Regulations to read as set forth below:Part 429 Certification Compliance and Enforcement for Consumer Products and Commercial and Industrial Equipment
§ 429.56
(i) Units to be tested. (A) The general requirements of § 429.11(a) are applicable except that the sample must be comprised of production units; and
and, x is the sample mean; n is the number of units; and x i is the ith unit;
and, x is the sample mean; s is the sample standard deviation; n is the number of samples; and t 0.99 is the t statistic for a 99 percent one-tailed confidence interval with n-1 degrees of freedom (from Appendix A of this part).
and, x is the sample mean; s is the sample standard deviation; n is the number of samples; and t 0.99 is the t statistic for a 99 percent one-tailed confidence interval with n-1 degrees of freedom (from Appendix A of this part);
and, x is the sample mean; n is the number of units; and x i is the ith unit.
(c) Rounding requirements for representative values, including certified and rated values, of lumen output, input power, efficacy, CCT, CRI, lifetime of integrated light-emitting diode lamps, standby mode power, and estimated annual energy cost. (1) The represented value of input power must be rounded to the nearest tenth of a watt.
(4) The represented value of correlated color temperature must be rounded to the nearest 100 Kelvin.
(7) The represented value of standby mode power must be rounded to the nearest tenth of a watt.Part 430 Energy Conservation Program for Consumer Products
Integrated light-emitting diode lamp means an integrated LED lamp as defined in ANSI/IESNA RP-16 (incorporated by reference; see § 430.3).
Lifetime of integrated light-emitting diode lamps means the length of operating time between first use and failure of 50 percent of the sample units (as defined in § 429.56(a)(1)(i)), in accordance with the test procedures described in section 4.5 of Appendix BB to subpart B of part 430 of this chapter.
(5) Medium base compact fluorescent lamps: Initial efficacy, lamp life. Testing for BLE may also be conducted by laboratories accredited by Underwriters Laboratories or Council of Canada. Testing for fluorescent lamp ballastsperformed in accordance with appendix Q to this subpart is not required to be conducted by test laboratories accredited by NVLAP or an accrediting organization recognized by NVLAP.
Appendix BB to Subpart B of Part 430—Uniform Test Method for Measuring the Input Power, Lumen Output, Lamp Efficacy, Correlated Color Temperature (CCT), Color Rendering Index (CRI), Time to Failure, and Standby Mode Power of Integrated Light-Emitting Diode (LED) LampsNoteAfter [Date 180 Days after Publication of Final Rule in theFederal Register], any representations made with respect to the energy use or efficiency of light-emitting diode lamps must be made in accordance with the results of testing pursuant to this appendix. Given that after [Date 180 Days after Publication of Final Rule in theFederal Register] representations with respect to the energy use or efficiency of light-emitting diode lamps must be made in accordance with tests conducted pursuant to this appendix, manufacturers may wish to begin using this test procedure as soon as possible.
1. Scope: This appendix specifies how to measure input power, lumen output, lamp efficacy, CCT, CRI, time to failure, and standby mode power for integrated LED lamps.2. Definitions2.1. The definitions specified in section 1.3 of IES LM-79 except section 1.3(f) (incorporated by reference; see § 430.3) apply.
2.6. CRI means color rendering index as defined in § 430.2.
2.7. Test duration means the operating time of the LED lamp after the initial lumen output measurement and before, during, and including the final lumen output measurement.3. Active Mode Test Method for Determining Lumen Output, Input Power, CCT, CRI, and Lamp EfficacyIn cases where there is a conflict, the language of the test procedure in this appendix takes precedence over IES LM-79 (incorporated by reference; see § 430.3).3.1. Test Conditions and Setup3.1.1. The ambient conditions, power supply, electrical settings, and instrumentation must be established in accordance with the specifications in sections 2.0, 3.0, 7.0, and 8.0 of IES LM-79 (incorporated by reference; see § 430.3), respectively.
3.1.4. The integrated LED lamp must be operated at maximum input power. If multiple modes occur at the same maximum input power (such as variable CCT or CRI), the manufacturer can select any of these modes for testing; however, all measurements described in section 3 and section 4 must be taken at the same selected mode.3.2. Test Method, Measurements, and Calculations3.2.1. The integrated LED lamp must be stabilized prior to measurement as specified in section 5.0 of IES LM-79 (incorporated by reference; see § 430.3). The stabilization variation is calculated as [maximum−minimum)/minimum] of at least three readings of the input power and lumen output over a period of 30 minutes, taken 15 minutes apart.
3.2.2. The input power in watts must be measured as specified in section 8.0 of IES LM-79 (incorporated by reference; see § 430.3).
3.2.3. Lumen output must be measured as specified in section 9.1 and 9.2 of IES LM-79 (incorporated by reference; see § 430.3). Goniometers must not be used.
3.2.4. CCT must be determined according to the method specified in section 12.0 of IES LM-79 (incorporated by reference; see § 430.3) with the exclusion of section 12.2 of IES LM-79. Goniometers must not be used.
3.2.5. CRI must be determined according to the method specified in section 12.0 of IES LM-79 (incorporated by reference; see § 430.3) with the exclusion of section 12.2 of IES LM-79. Goniometers must not be used.
3.2.6. Lamp efficacy must be determined by dividing measured initial lumen output by the measured input power.4. Active Mode Test Method To Measure Time to FailureIn cases where there is a conflict, the language of the test procedure in this appendix takes precedence over IES LM-79 (incorporated by reference; see § 430.3).
4.2.3. Operating conditions and setup during the test duration other than time during which lumen output measurements are being conducted are specified in section 4.3 of this appendix.4.3. Operating Conditions and Setup Between Lumen Output Measurements4.3.1. Ambient temperature must be controlled between 15 °C and 40 °C.
4.3.4. Line voltage waveshape must be as described in section 3.1 of IES LM-79 (incorporated by reference; see § 430.3).
4.3.6. Electrical settings must be as described in section 7.0 IES LM-79 (incorporated by reference; see § 430.3).
4.4. Measure Final Lumen Output. Measure the lumen output at the end of the test duration according to section 3.4.5. Calculate Lumen Maintenance and Time to Failure4.5.1. Calculate the lumen maintenance of the lamp after the test duration “t” by dividing the final lumen output “x t” by the initial lumen output “x 0”. Initial and final lumen output must be measured in accordance with sections 4.1 and 4.4 of this appendix, respectively.
Where: t is the test duration in hours; x 0 is the initial lumen output; x t is the final lumen output at time t, and ln is the natural logarithm function.
4.5.4. For lumen maintenance values less than 0.7, including lamp failures that result in complete loss of light output, time to failure is equal to the previously recorded lumen output measurement at a shorter test duration where the lumen maintenance is greater than or equal to 70 percent, and time to failure shall not be calculated in accordance with section 4.5.3 of this appendix.5. Standby Mode Test Method for Determining Standby Mode PowerIn cases where there is a conflict, the language of the test procedure in this appendix takes precedence over IES LM-79 (incorporated by reference; see § 430.3) and IEC 62301 (incorporated by reference; see § 430.3).5.1. Test Conditions and Setup5.1.1. The ambient conditions, power supply, electrical settings, and instrumentation must be established in accordance with the specifications in sections 2.0, 3.0, 7.0, and 8.0 of IES LM-79 (incorporated by reference; see § 430.3), respectively.
5.1.3. The integrated LED lamp must be operated at the rated voltage throughout testing. For an integrated LED lamp with multiple rated voltages, the integrated LED lamp must be operated at 120 volts. If an integrated LED lamp with multiple rated voltages is not rated for 120 volts, the integrated LED lamp must be operated at the highest rated input voltage.5.2. Test Method, Measurements, and Calculations5.2.1. Standby mode power consumption must be measured for integrated LED lamps if applicable.
5.2.2. The integrated LED lamp must be stabilized prior to measurement as specified in section 5.0 of IES LM-79 (incorporated by reference; see § 430.3). The stabilization variation is calculated as [maximum—minimum)/minimum] of at least three readings of the input power and lumen output over a period of 30 minutes, taken 15 minutes apart.
5.2.4. The standby mode power in watts must be measured as specified in section 5 of IEC 62301 (incorporated by reference; see § 430.3).
[FR Doc. 2014-14823 Filed 6-25-14; 8:45 am]BILLING CODE 6450-01-P
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