LM-79-08 Test Report for Elec-Tech International Co.,Ltd No.1 Jinfeng Rd.,Tangjiawan Town, Xiangzhou District, Zhuhai City, Guangdong province, China LED CEILING LIGHT Model: 540741XX(XX: 01-10) Laboratory: Leading Testing Laboratories Co., LTD NVLAP CODE: 200960-0 Tel: +86-571-56680806 www.ledtestlab.com Report No.: HZ14010016c The laboratory that conducted the testing detailed in this report has been accredited for SSL by NVLAP. Tested by: Approved by: Engineer: April Zou Feb. 19, 2014 Manager: Jim Zhang Feb. 19, 2014 Note: This report does not imply product certification, approval, or endorsement by NVLAP, NIST, or any agency of the Federal Government.
U.S. Department of Energy Lighting Facts TM Uniform LM-79 Reporting Template Laboratory Information: Name of test Laboratory Leading Testing Laboratories Date of test Report Feb. 19, 2014 Test Report Number HZ14010016c Laboratory Contact Name Jim Zhang Product Information: Organization Name Elec-Tech International Co., Ltd. Brand Name ETI Model Number 540741XX(XX: 01-10) SKU (if available) N/A Type of Luminaire LED SURFACE-MOUNTED FIXTURE (for integral lamps, list base type and lamp type) Luminaire Aperture (downlights) N/A in. Luminaire Length 12 in. Luminaire Width 12 in. Number of Units (modular products) N/A Electrical Measurements: Integrating sphere output Goniophotometer output Input Wattage NA 13.9 W Input Current NA 0.118 A Input Voltage ac NA 120.0 V Power Factor NA 0.9804 Off-state Power NA 0 W Photometric Characteristics Total Initial Lumen Output NA 1039.0 lm Initial Luminaire Efficacy NA 74.7 lm/w Correlated Color Temperature/ CCT NA 2767 K Color Rendering Index / CRI NA 82.2 R9 Value NA 20 Duv NA 0.0042 Luminous Intensity Distribution Center Beam Candlepower (if application) 269 cd Beam Angle (if application) 119.7 Zonal Lumens in the 0-60 Zone 60.48% Zonal Lumens in the 60-90 Zone 25.73% Zonal Lumens in the 90-120 Zone 8.33% Zonal Lumens in the 120-180 Zone 5.46%
Test Summary Sample Tested: 540741XX (XX: 01-10) Luminous Efficacy Total Luminous Flux Power (Lumens /Watt) (Lumens) (Watts) Power Factor 74.7 1039.0 13.9 0.9804 CCT Stabilization Time CRI (K) (Light & Power) 2767 82.2 80 Table 1: Executive Data Summary Note: The above results are recorded/ derived from measurements made using a Goniophotometer. Test specifications: Date of Receipt : Feb. 10, 2014 Date of Test : Feb. 19, 2014 Test item : Total Luminous Flux, Luminous Distribution Intensity, Luminous Efficacy, Correlated Color Temperature, Color Rendering Index, Chromaticity Coordinate, Electrical parameters Reference Standard : IESNA LM-79-2008 Approved Method for the Electrical and Photometric Measurements of Solid-State Lighting Products Model discrepancy: For Model 540741XX (XX: 01-10) XX could be 01-10, indicate for different packages, different costumer No. and different painting color of metal enclosure.
TABLE OF CONTENT LM-79-08 Test Report... 1 Lighting Facts TM Uniform LM-79 Reporting Template... 2 Test Summary... 3 Sample Photos... 5 TEST RESULTS... 6 Spectral Power Distribution - Sphere Spectroradiometer Method... 7 Zonal Lumen Tabulation- Goniophotometer Method... 8 Illuminance Plots- Goniophotometer Method... 9 Luminous Intensity Distribution Plots- Goniophotometer Method...10 Luminous Intensity Data- Goniophotometer Method...11 EQUIPMENT LIST...14 TEST METHODS...14 Seasoning of SSL Product...14 Sphere-Spectroradiometer Method- Photometric and Electrical Measurements...14 Goniophotometer Method...15 Photometric and Electrical Measurements...15 Color Characteristics Measurements...15 Color Spatial Uniformity...15
Sample Photos Figure 1- Overview of the sample Equipment Under Test (EUT) Name : LED CEILING LIGHT Model : 540741XX (XX: 01-10) Electrical Ratings : 100-277 V ac, 50/60Hz, 14W Product Description : Non-dimmable, 2700K Manufacture of LED light source: EVERLIGHT Model of LED light source: 5630B Manufacturer : Elec-Tech International Co.,Ltd Address : No.18-1, Keji 6th Road, Gangwan Avenue, Tangjiawan Town, Xiangzhou District, Zhuhai City, Guangdong Province, P.R.China Manufacturer : Wuhu 3E Lighting Co., Ltd Address : No11.wei Rd.East Zone of wuhu Economic and Technological Development Area Manufacturer : Elec-Tech International Co.,Ltd Address : No.1 Jinfeng Rd.,Tangjiawan Town, Xiangzhou District, Zhuhai City, Guangdong province, China
TEST RESULTS Test ambient temperature was 23.8. Test orientation was Light down. Test was conducted without a dimmer in the circuit. The stabilization time of the sample was 80 minutes, and the total operating time including stabilization was 115 minutes. Goniophotometer Method The photometric distance is 2.475m. Luminous data was taken at 0.5 vertical intervals, 10 horizontal intervals. Special Parameter Result Color Rendering Indices Test Voltage (V) 120.0 100 277 R1 80 Voltage frequency (Hz) 60 60 60 R2 88 Test Current (A) 0.118 0.144 0.059 R3 95 Power Factor 0.9804 0.9849 0.8455 R4 80 Test Power (W) 13.9 14.2 13.8 R5 78 Off state Power (W) 0 0 0 R6 83 THD A% 17.08 15.57 15.71 R7 88 Luminous Efficacy (lm/w) 74.7 R8 65 Total Luminous Flux (lm) 1309.0 R9 20 Color Rendering Index (CRI) 82.2 R10 71 R9 20 R11 76 Correlated Color Temperature (CCT) (K) 2767 R12 60 Chromaticity (Chroma x, Chroma y) (0.4617, 0.4228) R13 81 Chromaticity (Chroma u, Chroma v) (0.2583, 0.3548) R14 97 Chromaticity (Chroma u, Chroma v ) (0.2583, 0.5322) Duv 0.0042 Center Beam Candle Power (cd) 269 Spacing Criteria 1.27 (0-180 ) 1.27 (90-270 ) Beam Angle ( ) 119.3 Zonal Lumens in the 0-60 Zone 60.48% Zonal Lumens in the 60-90 Zone 25.73% Zonal Lumens in the 90-120 Zone 8.33% Zonal Lumens in the 120-180 Zone 5.46% Table 2: Test data per Goniophotometer Method Note: According to CIE 1976 (u',v') diagram, u' = u = 4x/(-2x+12y+3), v' = 3v/2 = 9y/(-2x+12y+3).
Spectral Power Distribution - Sphere Spectroradiometer Method Chart 1: Spectral Power Distribution
Zonal Lumen Tabulation- Goniophotometer Method γ( ) Lumens % Total 0-10 25.486 2.45% 10-20 73.298 7.05% 20-30 112.001 10.78% 30-40 136.717 13.16% 40-50 144.733 13.93% 50-60 136.109 13.10% 60-70 115.362 11.10% 70-80 89.024 8.57% 80-90 62.982 6.06% 90-100 41.243 3.97% 100-110 26.393 2.54% 110-120 18.907 1.82% 120-130 16.08 1.55% 130-140 14.106 1.36% 140-150 11.649 1.12% 150-160 8.677 0.84% 160-170 5.009 0.48% 170-180 1.209 0.12% Total 1039.0 100% γ( ) Lumens % Total 0-60 628.344 60.48% 60-90 267.368 25.73% 0-90 895.712 86.21% 90-180 143.273 13.79% 0-180 1039.0 100% Table 3: Zonal Lumen Data
Illuminance Plots- Goniophotometer Method Chart 2: Beam angle Chart 3: Illuminance Plot (Footcandles)
Luminous Intensity Distribution Plots- Goniophotometer Method Chart 4: Isocandela Plot Chart 5: Polar Candela Distribution
Luminous Intensity Data- Goniophotometer Method Table 4: Luminous Intensity Data
Table 5: Luminous Intensity Data- continuous
Color Spatial Uniformity- Goniophotometer Method Color uniformity was measured at two horizontal angles, 0 and 90, the vertical intervals was 10. C Angle = 0 C Angle = 90 γ Angle ( ) Chromaticity Coordinate u' Chromaticity Coordinate v' Chromaticity Coordinate u' Chromaticity Coordinate v' 0 0.2583 0.5321 0.2583 0.5321 10 0.2583 0.5321 0.2582 0.5321 20 0.2582 0.5321 0.2581 0.5321 30 0.2584 0.5321 0.2582 0.5321 40 0.2584 0.5322 0.2584 0.5321 50 0.2585 0.5323 0.2584 0.5321 60 0.2585 0.5323 0.2582 0.5321 70 0.2584 0.5324 0.2581 0.5321 80 0.2581 0.5324 0.258 0.5321 90 0.258 0.5325 0.2576 0.5321 Table 7: Chromaticity per Measurement Angle Weighted Average u' v' 0.2583 0.5322 The chromaticity measurements need to be made only for the γ angles where the average luminous intensity is more than 10 % of the peak intensity. γ Angle C Angle = 0 /180 C Angle = 90 /270 ( ) u' v' u' v' 0 0.0000 0.0001 0.0000 0.0001 10 0.0000 0.0001 0.0001 0.0001 20 0.0001 0.0001 0.0002 0.0001 30 0.0001 0.0001 0.0001 0.0001 40 0.0001 0.0000 0.0001 0.0001 50 0.0002 0.0001 0.0001 0.0001 60 0.0002 0.0001 0.0001 0.0001 70 0.0001 0.0002 0.0002 0.0001 80 0.0002 0.0002 0.0003 0.0001 90 0.0003 0.0003 0.0007 0.0001 Table 8: Chromatic Spatial Uniformity Spatial non-uniformity of chromaticity u'v': 0.0007.
EQUIPMENT LIST Test Equipment Model Equipment Calibration Calibration No. Date Due date Goniophotometer system GO-R5000 HZTE011-01 Sep. 18, 2013 Sep. 17, 2014 Digital Power Meter PF2010A HZTE028-01 Sep. 18, 2013 Sep. 17, 2014 AC Power Supply PCR 500L HZTE001-08 Sep. 18, 2013 Sep. 17, 2014 DC Power Supply WY12010 HZTE004-03 Sep. 18, 2013 Sep. 17, 2014 Temperature Meter TES1310 HZTE017-01 Sep. 18, 2013 Sep. 17, 2014 Standard source D908 HZTE012-01 Sep. 18, 2013 Sep. 17, 2014 Integrate Sphere system 2M HZTE015-01 Sep. 18, 2013 Sep. 17, 2014 Digital Power Meter WT210 HZTE008-01 Sep. 18, 2013 Sep. 17, 2014 AC Power Supply PCR 500L HZTE001-07 Sep. 18, 2013 Sep. 17, 2014 DC Power Supply 6154 HZTE004-04 Sep. 18, 2013 Sep. 17, 2014 Temperature and humidity recorder JR900 HZTE018-01 Sep. 18, 2013 Sep. 17, 2014 Standard source SCL-1400 HZTE012-02 Sep. 18, 2013 Sep. 17, 2014 TEST METHODS Table 6: Test Equipment List Seasoning of SSL Product For the purpose of rating new SSL products, SSL products shall be tested with no seasoning. Therefore, no seasoning was performed. Sphere-Spectroradiometer Method- Photometric and Electrical Measurements A Labsphere Model CDS 2100 Spectroradiometer and Two Meter Sphere was used to measure correlated color temperature, chromaticity coordinates, and the color rendering index for each SSL unit. The coating reflectance of each sphere is 98%. The measure geometry is 4π. Self-absorption correction is conducted in testing. Bandwidth of spectroradiometer is 350nm-1050nm. Ambient temperature was measured at a position inside the sphere. Each SSL unit was operated on the client provided driver at the rated input voltage in its designated orientation. The stabilization time typically ranges from 30 min (small integrated LED lamps) to 2 or more hours for large SSL luminaires). It can be judged that stability is reached when the variation (maximum minimum) of at least 3 readings of the light output and electrical power over a period of 30 min, taken 15 minutes apart, is less than 0.5 %. Electrical measurements including voltage, current, and power were measured using the Yokogawa Power Analyzer. The standard reference of the integrated sphere system is halogen incandescent lamp, the intensity distribution type is omni-directional, and is traceable to the National Institute of Standards and Technology.
The uncertainty of integrating sphere system reported in this document is expended uncertainty is 1.06% with a coverage factor k=2. Goniophotometer Method Photometric and Electrical Measurements An EVERFINE Type C Model GO-R5000 Goniophotometer was used to measure the intensity at each angle of distribution for each sample. The photometric distance is 2.475m for near-field measurement or 30m for far-field measurement. Bandwidth of spectroradiometer is 380nm-780nm. Ambient temperature was measured at the same height of the sample mounted on the Goniophotometer equipment. Each SSL unit was operated on the client provided driver at the rated input voltage in its designated orientation. The stabilization time typically ranges from 30 min (small integrated LED lamps) to 2 or more hours for large SSL luminaires). It can be judged that stability is reached when the variation (maximum minimum) of at least 3 readings of the light output and electrical power over a period of 30 min, taken 15 minutes apart, is less than 0.5 %. Electrical measurements including voltage, current, and power were measured using the Everfine Digital Power Meter. Some graphics were created with Photometric Plus software. The standard reference of the Goniophotometer system is halogen incandescent lamp, the intensity distribution type is omni-directional, and is traceable to the National Institute of Metrology P.R. China. The uncertainty of goniophotometer system reported in this document is expended uncertainty is 1.94% with a coverage factor k=2. Color Characteristics Measurements The color characteristics of SSL products include chromaticity coordinates, correlated color temperature, and color rendering index. These characteristics of SSL products may be spatially non-uniform, and thus, in order that they can be specified accurately, the color quantities shall be measured as values that are spatially average, weighted to intensity, over the angular range where light is intentionally emitted from the SSL product. The color characteristics measurements are using gonio-spectroradiometer. Color Spatial Uniformity The characteristics of SSL products may be spatially non-uniform, the chromaticity coordinate shall be measured at two vertical planes (C=0 /180 and C=90 /270 ) and at 10 or less intervals for vertical angle until the light output dropped to below 10% of the peak intensity. The averaged weighted chromaticity coordinate was calculated from these points. The data was then analyzed to check for delta color differences of the u', v'
chromaticity coordinates. The spatial non-uniformity of chromaticity, u'v', is determined as the maximum deviation (distance on the CIE (u', v') diagram) among all measured points from the spatially averaged chromaticity coordinate. The geometry for the chromaticity measurement using gonio-spectroradiometer is shown as following. *** End of Report *** This report is considered invalidated without the Special Seal for Inspection of the LTL. This report shall not be altered, increased or deleted. The results shown in this test report refer only to the sample(s) tested. Without written approval of LTL, this test report shall not be copied except in full and published as advertisement.