IESNA LM79 Test Report - NEXT Lighting

IESNA LM79-2008 Test Report

TÜV SÜD America

TÜV SÜD America, Inc. 5945 Cabot Parkway, Suite 100, Alpharetta GA 30005

NRG_F_10.04

TÜV SÜD America is accredited under the NVLAP EEL program.

Telephone: 678-341-5900 www.tuvamerica.com Confidential Report Lab Code: 500065-0

NRG_F_10.04, Rev. 0, Effective: 2012-01-19

Photometric Testing and Evaluation in Accordance with LM79-2008

Report Prepared for:

Thomas Katona Vice President Operations

NEXT Lighting Corp.

One Market Street, Spear Tower, Suite 3574 San Francisco, CA 94105

United States

Telephone: (415) 821-6000

Sample Tested: NL48-22-840-00-001

Manufacturer: NEXT Lighting Corp.

Technical Report Number: JI1212679-LM79 Report Issue Date: January 11th 2013

Total Number of Pages: 9 (including this page)

Report Prepared by: Report Reviewed by:

Byrd Evans Bryan Cubitt

TÜV SÜD Project Handler TÜV SÜD Program Manager

IESNA LM79-2008 TEST REPORT

Report# JI1212679-LM79

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Summary of Key Test Results Model# NL48-22-840-00-001

Manufacturer NEXT Lighting Corp.

TÜV Sample# 509-2

Date of Test January 10th 2012

Notes: Tested in intended orientation (Horizontal, Downwards)

Parameter Measured Result Luminous Flux 2133 Lumens

Input Power 22.47 Watts

Efficacy 94.93 Lumens/Watt

C.C.T. 3826 K

C.R.I. (Ra) 83.52 Beam Angle 122.3° Stabilization Time 45 minutes

The above results are recorded / derived from measurements in accordance with LM79-08



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TABLE OF CONTENTS

Test Results ..............................................................................................................................................................4

Spectral Flux and Chromaticity Diagram .................................................................................................................5

Zonal Lumen Summary ............................................................................................................................................5

Illuminance Plots ......................................................................................................................................................6

Candela Plots ...........................................................................................................................................................6

Candela Tabulation ..................................................................................................................................................7

Photometric Testing Information ............................................................................................................................8

Equipment List: ........................................................................................................................................................9



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Photometric Results NEXT Lighting Corp. NL48-22-840-00-001

Integrating Sphere Goniophotometer Total Luminous Flux (Lumens) 2133.0 2117.4 Luminous Efficacy (Lumens/Watt) 94.93 94.15 Total Radiant Flux (Watts) 6.76 - Correlated Color Temperature (CCT) 3826 - Color Rendering Index (CRI – Ra) 83.52 - R9 Value 21.8 - Chromaticity (Chroma x / Chroma y) 0.3881 / 0.3808 - Chromaticity (Chroma u / Chroma v) 0.2285 / 0.3363 - Chromaticity (Chroma u’ / Chroma v’) 0.2285 / 0.5045 - Duv Value -0.00025 -

Electrical Results NEXT Lighting Corp. NL48-22-840-00-001

Integrating Sphere Goniophotometer Input Power (Watts) 22.47 22.49 Input Voltage (Volts DC) 39.85 39.92 Input Current (Amps) 0.564 0.560 Power Factor N/A N/A Input Frequency (Hertz) N/A N/A A-THD (Current %) N/A N/A

Additional Parameters NEXT Lighting Corp. NL48-22-840-00-001

Integrating Sphere Goniophotometer Stabilization Time (Light and Power) 45 minutes 43 minutes

Test Geometry Configuration 4π Type C

Spectroradiometer Labsphere CDS1100 Gigahertz Optik P9801 Ambient Temperature 25.2°C 25.4°C Spacing Criteria 1.32 (0° – 180°) / 1.24 (90° – 270°)

Test Results – The following results were obtained after stabilization of the sample in accordance with the requirements set forth in section 5.0 of IES LM79-2008. Stability is achieved when the variation of 3 readings of light output and electrical power over a period of 30 minutes, taken 15 minutes apart, is less than 0.5%.



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Spectral Flux and Chromaticity Diagram

Spectral Flux Chromaticity Diagram

Spectral response of the Radiant Flux

(350nm to 850nm)

Tristimulus values (from page 5):

x / y = 0.3881 / 0.3808

The locations on the diagram of the tristimulus coordinates are indicated by the blue diamond.

Zonal Lumen Summary

Zone Lumens % Lamp / Luminaire 0 - 60 1711.8 80.8 %

60 - 90 405.7 19.2 % 0 - 90 2117.4 100.0 %

90 - 180 0.0 0.0 % 0 - 180 2117.4 100.0 %



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Test Results – Illuminance Plots

The following images depict the illuminance characteristics of the luminaire.

Beam Angle = 122.3° Field Angle = 168.7°

Test Results – Candela Plots The following images depict the luminous intensity distribution characteristics of the luminaire:

Isofootcandle Plot Isocandela Plot Polar Candela



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Maximum Candela = 774.1 at Horizontal: 337.5°, Vertical: 2.5°

Test Results – Candela Tabulation

The table below displays the tabulated Candela measurements from the IES file: Horizontal (lateral) angles are shown in red across the top of the table, in increments of 22.5°. Vertical (longitudinal) angles are shown in blue down the side of the table, in increments of 2.5°.

0.0 22.5 45.0 67.5 90.0 112.5 135.0 157.5 180.0 202.5 225.0 247.5 270.0 292.5 315.0 337.5 360.0

0.0 767 767 767 767 767 767 767 767 767 767 767 767 767 767 767 767 767

2.5 767 771 761 765 767 766 765 773 768 771 760 765 767 767 764 774 767

5.0 765 770 759 763 765 764 763 771 766 769 758 762 764 764 762 772 766

7.5 762 767 756 760 761 760 759 767 762 765 754 759 759 760 758 769 762

10.0 758 763 752 755 756 755 754 763 757 760 748 752 754 752 753 764 758

12.5 752 756 745 747 748 747 747 756 751 753 741 744 745 744 746 758 752

15.0 745 748 736 738 738 738 738 748 743 745 732 734 735 735 737 750 745

17.5 736 739 727 727 726 727 728 739 734 735 722 723 723 723 727 741 736

20.0 726 729 715 714 712 714 716 728 723 724 709 709 709 709 715 730 726

22.5 714 717 702 697 694 696 702 714 710 710 695 692 691 692 701 717 713

25.0 701 703 687 681 677 680 688 703 699 698 681 675 673 675 687 705 702

27.5 689 690 670 661 656 660 671 688 685 683 664 654 651 654 670 689 688

30.0 673 674 652 639 634 638 652 671 670 667 645 632 629 632 651 674 674

32.5 657 657 631 616 609 615 631 653 653 649 623 608 604 607 628 655 657

35.0 640 637 609 590 583 589 608 633 635 630 601 582 577 582 605 636 639

37.5 620 617 585 563 554 562 584 613 616 610 577 555 548 554 581 616 621

40.0 601 595 560 534 524 533 559 591 596 588 552 525 517 525 555 594 601

42.5 580 572 533 504 491 502 532 567 575 564 524 494 485 493 527 571 580

45.0 558 548 505 471 459 469 503 542 553 539 495 462 454 462 498 546 558

47.5 535 522 475 439 429 438 472 516 530 513 465 431 424 430 467 520 535

50.0 511 494 442 408 399 406 440 488 505 485 432 400 395 400 434 492 511

52.5 486 466 409 378 370 376 406 459 480 457 399 371 365 371 401 463 486

55.0 460 436 376 348 340 347 373 430 454 427 366 340 333 341 369 433 460

57.5 433 405 343 318 307 316 340 399 428 395 334 307 298 308 337 402 433

60.0 406 373 312 285 273 283 309 366 400 363 303 273 263 273 306 369 405

62.5 377 340 281 250 237 248 277 333 372 329 271 238 227 238 274 335 377

65.0 348 304 249 214 199 212 244 297 343 294 237 201 189 202 239 299 348

67.5 318 267 214 175 153 172 209 260 313 257 201 162 148 163 203 263 318

70.0 287 230 178 133 122 132 173 223 282 220 165 131 117 131 167 227 287

72.5 256 194 139 97 89 96 134 188 250 186 125 88 82 89 129 193 256

75.0 223 160 100 73 67 71 97 154 217 150 95 66 62 66 97 157 222

77.5 189 124 66 54 51 53 64 117 183 113 59 48 46 48 61 119 189

80.0 153 86 46 39 37 38 43 79 147 75 40 35 33 35 41 82 153

82.5 115 46 31 27 26 27 29 41 109 39 27 24 23 24 27 44 115

85.0 76 24 20 18 17 17 18 22 70 20 17 15 15 15 17 22 76

87.5 37 12 11 10 9 9 10 11 32 10 9 8 8 8 9 11 37

90.0 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6



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Continued…..

TÜV SÜD Photometric Testing Information

Testing is performed in accordance with the procedures outlined in IESNA LM79-2008. The sample is evaluated for photometric and electrical characteristics using an integrating sphere and a goniophotometer, located in an accredited, temperature and humidity-controlled, draft free photometric laboratory.

Sphere Geometry The integrating spheres used for measurement utilize a “4π geometry” configuration in accordance with section 9 of IES LM-79-2008 and is applicable for all types of SSL products (directional and non-directional light projections). The spectroradiometer is an array-type detector manufactured and calibrated by Labsphere (Model# CDS1100).

Self-Absorption Correction The integrating sphere uses self-absorption correction to eliminate errors due to mismatches between the standard reference lamp and the test samples being measured. This auxiliary correction lamp is a halogen type lamp powered by a calibrated Lamp Power Supply manufactured and calibrated by Labsphere (model LPS150). Ambient temperature is measured using a thermocouple located inside the integrating sphere at the same height as the sample under test (UUT) and not more than 1 meter in horizontal distance away from the sample (section 2.2 of LM79-2008). The thermocouple is located behind a baffle in order to eliminate any direct optical radiation from the sample under test.

Sample Stabilization The sample (UUT) is placed inside the integrating sphere and powered by a regulated and conditioned alternating or direct current supply. The stabilization times shown on the results pages of this report denote the time of the 3rd measurement (of the 3 consecutive readings) since this is the minimum time that the sample is assumed to have taken to reach stabilization in accordance with section 5.0 of LM79-2008.

Sphere Calibration The integrating sphere is calibrated using a quartzline halogen lamp with the following specifications:

Manufacturer: EYE Lighting International Model# J94/JD28V75W Voltage = 28.0 Volts DC Wattage = 75.0 Watts Calibration Current = 2.679 Amperes Luminous Flux = 1685 Lumens Calibration Date = 2-17-2011 (calibrated by Labsphere – NIST traceable).



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This technical report may only be quoted in full. Any use for advertising purposes must be granted in writing. This report is the result of a single examination of the object in question and is not generally applicable evaluation of the quality of other products in regular production.

This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the Federal Government

TÜV SÜD Photometric Testing Information (continued)

Goniophotometer The Goniophotometer is a Mirror based Type C optical measurement system in accordance with section 9.3.1 of IESNA LM79-2008.

Goniophotometer Calibration The Goniophotometer is calibrated using a frosted tungsten filament FDS/DZE lamp with the following specifications:

Manufacturer: General Electric Part Number: CSB-110 Lamp Number: 112-A Voltage: 16.52 Volts DC Wattage: 150.0 Watts Calibration Current: 4.816 Amperes Luminous Intensity: 151.5 Candelas Calibration Date: 02-13-2011 (NIST traceable)

TÜV SÜD Test Equipment List:

TÜV SÜD Sphere System – contains the following:

Description Manufacturer / Model# TÜV SÜD Ref# Calibration Due Date

Integrating Sphere Labsphere LM760 SPH003 weekly

Spectroradiometer Labsphere CDS1100 ATLE0048 9/7/2016

Power Analyzer Yokogawa WT210 ATLE0035 12/5/2013

Power Source Chroma 61602 AC003 N/A

Thermometer Fluke 52-II ATLE0008 11/17/2013

TÜV SÜD Mirror Goniophotometer System – contains the following:

Goniophotometer M.E. GONC02 GON002 weekly

Spectroradiometer Gigahertz Optik P9801 GIG002 weekly

Power Analyzer Yokogawa WT210 ATLE0031 11/16/2013

Power Source Chroma 61603 AC007 N/A

IESNA LM79 Test Report - NEXT Lighting

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