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: 540751XX(XX: 61-70) Laboratory: Leading Testing Laboratories Co., LTD NVLAP CODE: 200960-0 Tel: +86-571-56680806 www.ledtestlab.com 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 HZ14010016b Laboratory Contact Name Jim Zhang Product Information: Organization Name Elec-Tech International Co., Ltd. Brand Name ETI Model Number 540751XX(XX: 61-70) 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 16 in. Luminaire Width 16 in. Number of Units (modular products) N/A Electrical Measurements: Integrating sphere output Goniophotometer output Input Wattage NA 21.1 W Input Current NA 0.180 A Input Voltage ac NA 120.0 V Power Factor NA 0.9745 Off-state Power NA 0 W Photometric Characteristics Total Initial Lumen Output NA 1906.0 lm Initial Luminaire Efficacy NA 90.3 lm/w Correlated Color Temperature/ CCT NA 5157 K Color Rendering Index / CRI NA 83.6 R9 Value NA 33 Duv NA 0.0023 Luminous Intensity Distribution Center Beam Candlepower (if application) 547 cd Beam Angle (if application) 115.7 Zonal Lumens in the 0-60 Zone 65.84% Zonal Lumens in the 60-90 Zone 24.92% Zonal Lumens in the 90-120 Zone 5.90% Zonal Lumens in the 120-180 Zone 3.34%
Test Summary Sample Tested: 540751XX (XX: 61-70) Luminous Efficacy Total Luminous Flux Power (Lumens /Watt) (Lumens) (Watts) Power Factor 90.3 1906.0 21.1 0.9745 CCT Stabilization Time CRI (K) (Light & Power) 5157 83.6 90 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 540751XX (XX: 61-70) XX could be 61-70, 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 : 540751XX (XX: 61-70) Electrical Ratings : 100-277 V ac, 50/60Hz, 22W Product Description : Non-dimmable, 5000K Manufacture of LED light source: EVERLIGHT Model of LED light source: 5630D 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 24.0. Test orientation was Light down. Test was conducted without a dimmer in the circuit. The stabilization time of the sample was 90 minutes, and the total operating time including stabilization was 125 minutes. Goniophotometer Method The photometric distance is 2.475m. Luminous data was taken at 0.5 vertical intervals, 10 horizontal intervals. Parameter Result Special Color Rendering Indices Test Voltage (V) 120.0 100 277 R1 83 Voltage frequency (Hz) 60 60 60 R2 86 Test Current (A) 0.180 0.218 0.085 R3 86 Power Factor 0.9745 0.9773 0.8678 R4 85 Test Power (W) 21.1 22.3 21.8 R5 83 Off state Power (W) 0 0 0 R6 80 THD A% 15.16 14.48 23.42 R7 89 Luminous Efficacy (lm/w) 90.3 R8 78 Total Luminous Flux (lm) 1906 R9 33 Color Rendering Index (CRI) 83.6 R10 65 R9 33 R11 83 Correlated Color Temperature (CCT) (K) 5157 R12 59 Chromaticity (Chroma x, Chroma y) (0.3411, 0.3538) R13 83 Chromaticity (Chroma u, Chroma v) (0.2083, 0.3231) R14 92 Chromaticity (Chroma u, Chroma v ) (0.2083, 0.4847) Duv 0.0023 Center Beam Candle Power (cd) 525 Spacing Criteria 1.25 (0-180 ) 1.24 (90-270 ) Beam Angle ( ) 117.2 Zonal Lumens in the 0-60 Zone 65.84% Zonal Lumens in the 60-90 Zone 24.92% Zonal Lumens in the 90-120 Zone 5.90% Zonal Lumens in the 120-180 Zone 3.34% 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 51.797 2.72% 10-20 148.705 7.80% 20-30 226.408 11.88% 30-40 274.789 14.42% 40-50 287.786 15.10% 50-60 265.421 13.93% 60-70 216.898 11.38% 70-80 157.402 8.26% 80-90 100.654 5.28% 90-100 57.344 3.01% 100-110 32.245 1.69% 110-120 22.866 1.20% 120-130 19.479 1.02% 130-140 16.164 0.85% 140-150 12.715 0.67% 150-160 9.069 0.48% 160-170 4.898 0.26% 170-180 1.327 0.07% Total 1906.0 100% γ( ) Lumens % Total 0-60 1254.906 65.84% 60-90 474.954 24.92% 0-90 1729.86 90.76% 90-180 176.107 9.24% 0-180 1906.0 100% 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 0.2084 0.4848 0.2084 0.4848 10 0.2084 0.4849 0.2084 0.4848 20 0.2084 0.4848 0.2084 0.4848 30 0.2083 0.4848 0.2084 0.4848 40 0.2083 0.4848 0.2084 0.4846 50 0.2082 0.4847 0.2083 0.4846 60 0.2081 0.4846 0.2083 0.4845 70 0.2080 0.4847 0.2081 0.4842 80 0.2078 0.4846 0.2079 0.4841 90 0.2075 0.4843 0.2076 0.4838 Table 7: Chromaticity per Measurement Angle Weighted Average u' v' 0.2082 0.4846 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 0.0002 0.0002 0.0002 0.0002 10 0.0002 0.0003 0.0002 0.0002 20 0.0002 0.0002 0.0002 0.0002 30 0.0001 0.0002 0.0002 0.0002 40 0.0001 0.0002 0.0002 0.0000 50 0.0000 0.0001 0.0001 0.0000 60 0.0001 0.0000 0.0001 0.0001 70 0.0002 0.0001 0.0001 0.0004 80 0.0004 0.0000 0.0003 0.0005 90 0.0007 0.0003 0.0006 0.0008 Table 8: Chromatic Spatial Uniformity Spatial non-uniformity of chromaticity u'v': 0.0008.
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.