Building Technologies Program eere.energy.gov 1 

### BUILDING TECHNOLOGIES PROGRAM



### NOPR Public Meeting Test Procedures for High

- Intensity Discharge Lamps Tina Kaarsberg, Ph.D.

Department of Energy Energy Efficiency and Renewable Energy HIDLamps

- 2010

- TP

- 0044@ee.doe.gov

Thursday, January 19, 2012Building Technologies Program eere.energy.gov 2 

## • Introductions (including web participants)

• Role of the Facilitator

• Ground Rules (norms)

– Listen as an ally

– Use short, succinct statements/keep to the point

– Hold sidebar conversations outside the room

– One person speak at a time (raise hand to be recognized; state your name for the record; web participants will have certain times allotted for their Q&A)

– Set cell phones (and other devices that make noise) to silent/vibrate, web participants mute phones.



## • Housekeeping Items

• Agenda Review

• Opening Remarks 

## WelcomeBuilding Technologies Program eere.energy.gov 3 

## Public Meeting Agenda

9:00

– 9:30 am Welcome, Introductions, Opening Statements

9:30

– 9:45 am Statute and Context

9:45

– 11:15 am Proposed Test Procedures: Definitions; Test Methods

11:15

– 11:30 am Break

11:30

– 12:00 pm Proposed Test Procedures: Laboratory Accreditation Program; Test Measurements and Calculations

12:00

– 12:30 pm Conclusion and Closing Remarks

12:30 pm Adjourn

At the end of each section, time will be set aside for Web participants to ask questions and/or make statements.

Questions e

- mailed during webinar will be included in the transcript.Building Technologies Program eere.energy.gov 4 

## 1. Review statute and DOE actions for high

- intensity discharge (HID) lamps.

2. Present DOE’s proposed test procedures

3. Seek comment from participants on the proposed test procedures 

## Purpose of the Test Procedures NOPR Public Meeting

At this time DOE welcomes opening remarks (including from Web participants) on the NOPR for the HID Lamp Test Procedures.Building Technologies Program eere.energy.gov 5 

## Issues for Comment

Issue Box: DOE welcomes comment concerning the proposed HID lamp test procedures. Throughout this presentation, issues will be raised for discussion on slides in boxes like this, with identifying numbers corresponding to those in the HID Lamp Test Procedures NOPR.

Issue box numbering corresponds to the list of issues published at the end of the Test Procedures NOPR published December 15, 2011:

http://www1.eere.energy.gov/buildings/appliance_standards/pdfs/ hid_tp_nopr _fr_notice_2011_12_15 .pdf



### Comment Period Ends: Tuesday, February 28, 2012Building Technologies Program eere.energy.gov 6 

## Public Meeting Agenda

Proposed HID Lamp Test Procedures 2

Closing Remarks 3 1 Statute and ContextBuilding Technologies Program eere.energy.gov 7 

## Regulatory History

– Test Procedure

Energy Policy and Conservation Act (EPCA),
1975

HID Notice of Determination

75 FR 37975 (July 1, 2010) Established energy conservation standards and methods of test procedure development for consumer products.

DOE issued a final determination that standards and test procedures are technically feasible, economically justified, and result in energy savings.

Current test procedures rulemaking

76 FR 77914 (Dec. 15, 2011) DOE proposed test procedures for HID lamps based on a review of industry standards and a review of technical aspects of the technology and

measurement.Building Technologies Program eere.energy.gov 8 

## Test Procedures Rulemaking Process/ Schedule

Milestone Date

HID Test Procedures NOPR Issued, 76 FR 77914

Beginning of 75 day comment period December 15, 2011

End of 75 day Comment Period February 28, 2012

Final rule to establish any final test procedures for HID lamps (projected) January 1, 2013 NOPR Final
Rule

TodayBuilding Technologies Program eere.energy.gov 9 

## Industry Standards for HID Lamps (CIE Standards)

CIE* Standards

Standard Subject

CIE 13.3

- 1995 Method of Measuring and Specifying Color Rendering of Light Sources

CIE 15

- 2004 Colorimetry

 These CIE standards are proposed to be incorporated by reference

into 10 CFR part 431

* International Commission on Illumination (Commission Internationale de l’Eclairage (CIE))Building Technologies Program eere.energy.gov 10 Outdated Reference Standards Updated or Current Standard Subject

ANSI C78.386

- 1989 (Mercury Lamps)
ANSI C78 .389

- R2009 - for Electric Lamps

- High

- Intensity Discharge

- Methods of Measuring

Characteristics ANSI C78.387

- 1990 (Metal Halide Lamps)

ANSI C78.388

- 1989 (High Pressure Sodium Lamps)

NA ANSI C78.379

- 2006 - for Electric Lamps

- Classification of the Beam

Patterns of Reflector Lamps 

## Industry Standards for HID Lamps (ANSI Standards)

ANSI* Standards

 ANSI standards are proposed to be incorporated into 10 CFR part 431

* American National Standards InstituteBuilding Technologies Program eere.energy.gov 11 

## Industry Standards for HID Lamps (IES Standards)

IES* Standards

Current Standard Subject

LM

- 47

- 01 Approved Method for Life Testing of High Intensity Discharge (HID) Lamps (for testing of lumen maintenance)

LM

- 51

- 00 Approved Method for the Electrical and Photometric Measurements of High Intensity Discharge Lamps

 LM

- 47 and 51 are proposed to be incorporated by reference into 10

CFR part 431

* Illuminating Engineering Society of North America (IES formerly abbreviated as IESNA)Building Technologies Program eere.energy.gov 12 

## • HID lamps are considered to be commercial equipment.

• HID lamps do not operate in either standby or off mode.

• Therefore no measure of standby and/or off mode energy use for HID lamps is included in this NOPR. 

## No Measure of Standby Mode and Off Mode Energy UsageBuilding Technologies Program eere.energy.gov 13 

## Public Meeting Agenda

Proposed HID Lamp Test Procedures 2

Closing Remarks 3 1 Statute and ContextBuilding Technologies Program eere.energy.gov 14 

## Definitions

Test Methods for Measuring Energy Efficiency of HID Lamps

Laboratory Accreditation Program

Test Measurements and Calculations 

## Proposed HID Lamp Test ProceduresBuilding Technologies Program eere.energy.gov 15 

### • The following definitions from EPCA are relevant to the HID lamp test procedures.

• DOE proposes to adopt without modification these definitions :

“ballast” “color rendering index” “correlated color temperature” “high

- intensity discharge lamp” “mercury vapor lamp” “metal halide lamp”

Ref: 42 U.S.C. 6291 (58), (30)(J), (30)(K), (46), (47)(A), and (63) 

## Existing Definitions

– No AmendmentBuilding Technologies Program eere.energy.gov 16 

### • The following definitions from 10 CFR part 430 are relevant to the HID lamp test procedures.

• DOE proposes to adopt with minor modifications these definitions :

“lamp electrical power input” “lamp wattage”

“lumen maintenance” “rated luminous flux or rated lumen output ”

Ref: 10 CFR 430.2, subpart R, 42 U.S.C (30)(O), 10 CFR 430.2, Subpart B, appendix W, sections (2)(c) and ( 2)( d). 

## Existing Definitions

– Requiring AmendmentBuilding Technologies Program eere.energy.gov 17 

### • Additional definitions are necessary for the HID lamps test procedures in order to provide a comprehensive test procedure that produces consistent and reproducible test measurement results.

• DOE proposes that the following new definitions are needed for the HID test procedures:

“beam angle” “directional lamp” “high

- pressure sodium lamp” “lamp efficacy”

“self

- ballasted lamp” “basic model” 

## New Definitions for HID LampsBuilding Technologies Program eere.energy.gov 18 • DOE proposes to distinguish directional lamps by distribution rather than lamp construction.

• DOE’s proposed definition of directional lamp is based on the current European Union definition (Commission Regulation (EC) No 244/2009 ).

• The proposed definition for “directional lamp” is 

### :

‘Directional lamp’ means a lamp emitting at least 80 percent light output within a solid angle of π steradians (corresponding to a cone with an angle of 120 degrees).

• DOE proposes to use the industry

- accepted practice for beam angle measurement as specified in ANSI C78.379

• The proposed definition for “beam angle” is:
‘Beam angle’ means the beam angle (or angles) as measured according to the requirements of ANSI C78.379, including complex beam angles as described in ANSI C78.379, appendix A. 

## New Definitions for HID Lamps (directional lamp, beam angle)Building Technologies Program eere.energy.gov 19 

### • DOE is proposing a definition for high

- pressure sodium lamp (HPS)

– recommended by NEMA in response to the HID lamps notice of proposed determination (75 FR 22031) and

– based on the one given for “HPS lamps” in ANSI C82.9

- 1996, “American National Standard for High

- Intensity Discharge and Low

Pressure Sodium Lamps, Ballasts and Transformers

– Definitions (ANSI C82.9).”

• The proposed definition for “high

- pressure sodium lamp” is:

‘High

- pressure sodium lamp’ means a high

- intensity discharge lamp in which the major portion of the light is produced by radiation from sodium vapor operating at a partial pressure of about 6,670 pascals (approximately 0.066 atmospheres or 50 torr) or greater. 

## New Definitions for HID Lamps (high

- pressure sodium lamps)Building Technologies Program eere.energy.gov 20 

### • For the proposed rule DOE proposes to adopt and amend the existing definition for lamp efficacy from 10 CFR 430 Subpart B, Appendix R by:

– replacing “lamp lumen output” with “rated luminous flux or rated lumen output” and

– adding the abbreviation “lm/W” after “lumens per watt.”

• The proposed modified definition for “lamp efficacy” is:

‘Lamp efficacy’ means the ratio of rated lumen output (or rated luminous flux) to the measured lamp electrical power input in watts, rounded to the nearest tenth, in units of lumens per watt (lm/W).” 

## New Definitions for HID Lamps (lamp efficacy)Building Technologies Program eere.energy.gov 21 

### • DOE proposes test procedures for self

- ballasted HID lamps (those that require no external ballast).

• DOE proposes a definition for self

- ballasted lamps based on that used for self

- ballasted CFL lamps. (10 CFR part 430, subpart B, Appendix W)

• The proposed definition for a “self

- ballasted lamp” for HID lamps is:

‘Self

- ballasted lamp’ means a lamp unit that incorporates, all elements that are necessary for the starting and stable operation of the lamp in a permanent enclosure, and does not include any replaceable or interchangeable parts.” 

## New Definitions for HID Lamps (self

- ballasted lamp)Building Technologies Program eere.energy.gov 22 

### • To demonstrate compliance with an efficacy standard for HID lamps, manufacturers must test each “basic model” (10 CFR 429.11)

• The proposed definition for a HID lamp “basic model” is:

‘Basic model’ with respect to HID lamps means all units of a given type of covered equipment (or class thereof) manufactured by one manufacturer, having the same primary energy source and which have essentially identical electrical, physical, and functional (or hydraulic) characteristics that affect energy consumption, energy efficiency, water consumption, or water efficiency, and are rated to operate a given lamp type and wattage.” 

## New Definitions for HID Lamps (basic model)

Issue 1a: DOE invites comment on the proposed new definitions.Building Technologies Program eere.energy.gov 23 

### • DOE proposes to amend the existing definition for “ballast efficiency” to distinguish the values “P in 

### ”, “P out 

### ” and “lamp electrical power input ”

• The proposed modified definitions for “ballast efficiency” is follows:

‘ B allast efficiency’ means, in the case of a high

- intensity discharge fixture, the efficiency of a lamp and ballast combination, expressed as a percentage, and calculated in accordance with the following formula: Efficiency = Lamp electrical power input / Ballast power input 

## Existing Definitions Requiring Amendment

Issue 1b: DOE invites comment on the proposed amendments to existing definitions and whether alternative amendments would be more appropriate for HID lamp testing.Building Technologies Program eere.energy.gov 24 

## Proposed HID Lamp Test Procedure

Definitions

Test Methods for Measuring Energy Efficiency of HID Lamps

Laboratory Accreditation Program

Test Measurements and CalculationsBuilding Technologies Program eere.energy.gov 25 

### • Proposed Test Conditions (ANSI C78.389):

– Ambient temperature 25 o 

### C ± 5 o 

### C

– Air speed ≤ 0.5 meters per second (m/s)

Issue 2: DOE requests comment on the proposed ambient test temperature requirements.

Issue 3: DOE requests comment on the proposal to adopt for HID lamps the same air speed requirements as DOE required for the MH Lamp Ballast Test Procedure (2010). 

## Test Method for HID Lamps (proposed test conditions)Building Technologies Program eere.energy.gov 26 

### • To determine HID lamp efficacy and color parameters, the proposed test procedures requires measurement of the photometric and electrical characteristics of the lamps

Electric Photometric line voltage total luminous flux (lumens (lm)) lamp voltage luminous intensity (candelas (cd)) lamp current correlated color temperature (CCT) power input color rendering index ( CRI)



### • Proposed measurement details are derived from ANSI C78.389 and
LM

- 51 

## Test Method for HID Lamps (electric and photometric measurements)Building Technologies Program eere.energy.gov 27 

## Test Method for HID Lamps (power supply characteristics)

• DOE proposes power supply characteristics requirements for these HID lamps test procedures that are derived from ANSI C78.389 and
LM

- 51:

– Voltage supply waveshape must be sinusoidal

– Root

- mean

- square ( rms ) sum of harmonic components must be less than 3% of the fundamental frequency

– Voltage regulation within ± 0.1% (from LM

- 51)

– Power source impedance must be less than or equal 2% of the reference ballast impedance

– Kilovolt

- amperes rating of variable autotransformers or other voltage transformation devices should be at least five times the test lamp’s normal wattage



### Issue 4: DOE invites comments on the proposal to adopt the waveshape, voltage regulation, and power source impedance requirements of ANSI C78.389 in part and LM

- 51.Building Technologies Program eere.energy.gov 28 

## Test Method for HID Lamps (reference ballast requirements)

Issue 5: DOE invites comments on the proposed reference ballast requirements and the appropriateness of adopting the requirements as recommended by ANSI C78.389. • DOE proposes that lamps are to be operated with an appropriately
rated reference ballast

– Provide specified power, voltage and current (ANSI C78.389. sec 3.4.)

– Readily available

– Other ballasts may provide results that are not consistent, only valid for specific ballast and circuitBuilding Technologies Program eere.energy.gov 29 

## Test Method for HID Lamps (instrumentation requirements)

• Proposed HID test procedures adopt the instrumentation requirements of ANSI C78.389 for electrical measurements and
LM

- 51 for photometry

• For electrical measurements these are:

– Better than 0.75% accuracy in the frequency range of 40 to 1000 Hz.

– Voltage drop and current draw caused by impedance must be within specified limits for each lamp type



### • For light output and color measurement these are:

– Photometer with an approximate V

- lambda (V(λ)) spectral response

– Integrating sphere used for total luminous flux measurements



### Issue 6: DOE invites comments on the proposed instrumentation specifications and the appropriateness of adopting these requirements from ANSI C78.389, section 3.8, and LM

- 51, section 9.0.Building Technologies Program eere.energy.gov 30 

## Test Method for HID Lamps (sampling method)

• Proposed sampling method to be adopted from the GSFL/GSIL/IRL sampling plan

- 10 CFR 429.27

– Sample of 21 units over a 12

- month production period.

– Use true mean lamp characteristics values for sample group measurement data (e.g., lumen output, lumens per watt, CCT and CRI)



### • For each basic model of HID lamps:

– Measurement results for all samples averaged over 12

- month period

– Each lamp characteristic sample mean derated and confidence limit
set to 95%

– Each lamp characteristic mean value no greater than the lower of the mean of the sample or the lower 95% confidence limit divided by 0.97



### Issue 7: DOE invites comments and data on the precision and applicability of the proposed sampling method.Building Technologies Program eere.energy.gov 31 • Prior to testing, DOE proposes that all lamps be “aged” 100 hours in the burning position that would be used during testing (ANSI C78.389)

• DOE proposes that all lamps be warmed up sufficiently and checked for
stabilized operation prior to measurement to obtain reproducible and
consistent measurements. (ANSI C78.389) 

## Test Method for HID Lamps (aging and stabilization)

Table III.1 ANSI C78.389 HID Lamp Warm

- Up and Stabilization Criteria Lamp Type Lamp Warm

- Up Time Stabilization Criteria

MV 15

– 20 mins 3 successive measurements (voltage and current)
5 minute measurement intervals Change in value < 1.0%

HPS 1 hour 3 successive measurements (voltage and current)
10

- 15 minute measurement intervals Change in value < 1.0%

MH 6 hours operated within 10% rated wattage 3 successive measurements (voltage and current)
10

- 15 minute measurement intervals Change in value < 3.0%



### Issue 8: DOE invites comments and data on the applicability of the proposed 100

- hour aging requirement and stabilization methods.Building Technologies Program eere.energy.gov 32 

## Test Method for HID Lamps (cool down and re

- stabilization)

• DOE proposes HID lamp transfer and re - stabilization requirements that vary by lamp type

– MV lamps do not require prior cooling prior to transfer

– MH lamp orientation must not change else longer re

- stabilization times
will be required

– HPS lamps must be cooled and will require 1 hour warm up time



### • DOE proposes detailed lamp stabilization, re - stabilization and lamp transfer requirements for the various HID lamp types, as described in ANSI C78.389

Issue 9: DOE has proposed lamp cool down and re

- stabilization methods for HID lamps and invites comments on whether an
alternative re

- stabilization method should be considered.Building Technologies Program eere.energy.gov 33 

## Test Method for HID Lamps (lamp orientation)

• DOE proposes the lamp orientation requirements in ANSI C78.389

• Orientation is critical for aging, stabilization, and testing of HID lamps

• DOE proposes lamps marked “universal” or that lack a specified position be operated in the base up position

• DOE proposes lamps for use in a specified operating position be tested
in that specified position



### Issue 10: DOE invites comments on the appropriateness of the lamp orientation requirements in section 3.6 of ANSI C78.389 that require base up unless otherwise specified.

DOE also seeks comments on whether a preferred lamp orientation exists for lamp ballast testing.Building Technologies Program eere.energy.gov 34 

## Test Method for HID Lamps (directional lamps)

• DOE proposes that HID lamp test procedures for d irectional lamps with a discernible beam pattern include determination of the beam angle

• Beam angle is calculated using the results of goniophotometric testing

• DOE proposes set

- up and measurement of directional lamps be done following ANSI C78.379

Issue 11: DOE invites comments on the proposed setup and measurement standard selection for directional lamps based on ANSI C78.379.

DOE also invites comments on the various methods for calculating beam angle.Building Technologies Program eere.energy.gov 35 

## Proposed HID Lamp Test Procedure

Definitions

Test Methods for Measuring Energy Efficiency of HID Lamps

Laboratory Accreditation Program

Test Measurements and CalculationsBuilding Technologies Program eere.energy.gov 36 

### • DOE proposes that testing be conducted by independent test
laboratories that are also accredited by the National Voluntary Laboratory Accreditation Program (NVLAP) or by an accrediting organization recognized by NVLAP

• DOE proposes that a manufacturer's or importer's own laboratory, if accredited by NVLAP or by an accrediting organization recognized by NVLAP, may conduct the applicable testing 

## Laboratory Accreditation Program

Issue 12: DOE requests comment on the proposal to require NVLAP

accredited (or equivalent) laboratories for testing similar to as DOE required in the GSFL/IRL/GSIL test procedure (issued Dec 2011).Building Technologies Program eere.energy.gov 37 

## Proposed HID Lamp Test Procedure

Definitions

Test Methods for Measuring Energy Efficiency of HID Lamps

Laboratory Accreditation Program

Test Measurements and CalculationsBuilding Technologies Program eere.energy.gov 38 

### • 100 hour lamp aging

• Lamp stabilization and re

- stabilization if necessary

• Measure electrical and photometric characteristics

– voltage, current → power

– Light Output → lumens (integrating sphere)

– Light Output → color ( spectroradiometer )

– Light Output → distribution ( goniophotometer )



### • Calculate lamp efficacy (lumens/watts)

• Calculate color values (CCT and CRI)

– DOE is considering use of color values in establishing product classes for energy conservation standards



### • Repeat for entire test sample group calculate group statistics. 

## Test Measurements and Calculations

Use methods in ANSI C78.379 annex A, CIE 13.3, 15; IESNA LM

- 47, annex; and LM

- 51. 

### start

finishBuilding Technologies Program eere.energy.gov 39 

## Test Measurements and Calculations

Issue 13: DOE invites comments and data on the suitability of the proposed* measurement and calculation procedures for lamp efficacy, center beam intensity, beam angle, lumen maintenance, and color characteristics (CCT and CRI).

*ANSI C78.379, annex A; CIE 15 and 13.3; IESNA LM

- 47; and LM

- 51Building Technologies Program eere.energy.gov 40 

## Public Meeting Agenda

Proposed HID Lamp Test Procedure 2

Closing Remarks 3 1 Statute and ContextBuilding Technologies Program eere.energy.gov 41 

## Closing Remarks

At this time DOE welcomes any closing remarks from interested parties.Building Technologies Program eere.energy.gov 42 

### • In all correspondence, include all of the following :

– Test Procedures for High

- Intensity Discharge Lamps

– Docket Number: EERE

- 2011

- BT

- TP

- 0044

– Regulatory Identification Number (RIN): 1904

- AC37



### • Contact Information

Email: HIDLamps

- 2010

- TP

- 0044@ee.doe.gov

URL: http://www1.eere.energy.gov/buildings/appliance_standards/co mmercial/high_intensity_discharge_lamps.html

Postal Mail: Courier:

Ms. Brenda Edwards Ms. Brenda Edwards U.S. Department of Energy U.S. Department of Energy Building Technologies Program Building Technologies Program Mailstop EE

- 2J 950 L’Enfant Plaza, S.W., 6 th Floor 1000 Independence Avenue S.W. Washington, D.C. 20024 Washington, D.C. 20585

- 0121 

## Submission of Comments

Comment period closes: Tuesday, February 28, 2012Building Technologies Program eere.energy.gov 43 

# Back Up SLIDES Backup SlidesBuilding Technologies Program eere.energy.gov 44 

## Test Method for HID Lamps

Lamp Type Lamp Warm

- Up Time Stabilization Criteria

MV 15

– 20 mins 3 successive measurements (voltage and current)
5 minute measurement intervals Change in value < 1.0%
HPS 1 hour 3 successive measurements (voltage and current)
10

- 15 minute measurement intervals Change in value < 1.0%

MH 6 hours Operated within 10% rated wattage 3 successive measurements (voltage and current)
10

- 15 minute measurement intervals Change in value < 3.0% Table III.1 ANSI C78.389 HID Lamp Warm

- Up and Stabilization Criteria

Lamp Type Cooling Requirement Re

- stabilization Time

MV None Not in standard Reconfirm stabilized operations upon
transfer/restrike

HPS Allow to cool for 1 hour minimum before relocating Not in standard Reconfirm stabilized operations upon
transfer/restrike

MH Cool to below 60 o C if relocating No relocation no reorientation

– 30 minutes
Relocation with no reorientation

– 30 minutes
Reorientation

– 6 hours Table III.2 ANSI C78.389 HID Lamp Cool Down and Re

- stabilization RequirementsBuilding Technologies Program eere.energy.gov 45 

### ANSI C78.389 HID Lamp Test Electrical Circuit Diagram 

## Test Method for HID LampsBuilding Technologies Program eere.energy.gov 46 

### Issue 1a: DOE invites comment on the proposed new definitions.

Issue 1b: DOE invites comment on the proposed amendments to existing definitions and whether alternative amendments would be more appropriate for HID lamp testing.

Issue 2: DOE requests comment on the proposed ambient test temperature requirements.

Issue 3: DOE requests comment on the proposal to adopt for HID lamps the same air speed requirements as DOE required for the MH Lamp Ballast Test Procedure (2010).

Issue 4: DOE invites comments on the proposal to adopt the waveshape

, voltage regulation, and power source impedance requirements of ANSI C78.389 in part and LM

- 51.

Issue 5: DOE invites comments on the proposed reference ballast requirements and the appropriateness of adopting the requirements as recommended by ANSI C78.389. 

## Requests for Comment in TP NOPRBuilding Technologies Program eere.energy.gov 47 

### Issue 6: DOE invites comments on the proposed instrumentation specifications and the appropriateness of adopting these requirements from ANSI C78.389, section 3.8, and LM

- 51, section 9.0.

Issue 7: DOE invites comments and data on the precision and applicability of the proposed sampling method.

Issue 8: DOE invites comments and data on the applicability of the proposed
100

- hour aging requirement and stabilization methods.

Issue 9: DOE has proposed lamp cool down and re

- stabilization methods for HID lamps and invites comments on whether an alternative re

- stabilization
method should be considered.

Issue 10: DOE invites comments on the appropriateness of the lamp orientation requirements in section 3.6 of ANSI C78.389 that require base up unless otherwise specified. DOE also seeks comments on whether a preferred lamp orientation exists for lamp ballast testing. 

## Requests for Comment in TP NOPRBuilding Technologies Program eere.energy.gov 48 

### Issue 11: DOE invites comments on the proposed setup and measurement standard selection for directional lamps based on ANSI C78.379. DOE also invites comments on the various methods for calculating beam angle.

Issue 12: DOE requests comment on the proposal to require NVLAP

accredited (or equivalent) laboratories for testing similar to as DOE required in the GSFL/IRL/GSIL test procedure (issued Dec 2011).

Issue 13: DOE invites comments and data on the suitability of the proposed* measurement and calculation procedures for lamp efficacy, center beam intensity, beam angle, lumen maintenance, and color characteristics (CCT and CRI).

*ANSI C78.379, annex A; CIE 15 and 13.3; IESNA LM

- 47; and LM

- 51. 

## Requests for Comment in TP NOPR