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: 01-10) 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 Jan. 20, 2014 Manager: Jim Zhang Jan. 20, 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 Jan. 20, 2014 Test Report Number HZ14010016a Laboratory Contact Name Jim Zhang Product Information: Organization Name Elec-Tech International Co., Ltd. Brand Name ETI Model Number 540751XX(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 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 0.179 A Input Voltage ac NA 120.0 V Power Factor NA 0.9798 Off-state Power NA 0 W Photometric Characteristics Total Initial Lumen Output NA 1690.8 lm Initial Luminaire Efficacy NA 79.7 lm/w Correlated Color Temperature/ CCT NA 2707 K Color Rendering Index / CRI NA 81.8 R9 Value NA 20 Duv NA 0.0007 Luminous Intensity Distribution Center Beam Candlepower (if application) 488 cd Beam Angle (if application) 115.2 Zonal Lumens in the 0-60 Zone 66.04% Zonal Lumens in the 60-90 Zone 24.82% Zonal Lumens in the 90-120 Zone 5.83% Zonal Lumens in the 120-180 Zone 3.31% Prepared by: Leading Testing Laboratories 2 of 16
Test Summary Sample Tested: 540751XX (XX: 01-10) Luminous Efficacy Total Luminous Flux Power (Lumens /Watt) (Lumens) (Watts) Power Factor 79.7 1690.8 21.1 0.9798 CCT Stabilization Time CRI (K) (Light & Power) 2707 81.8 90 Table 1: Executive Data Summary Note: The above results are recorded/ derived from measurements made using an Integrating Sphere. Test specifications: Date of Receipt : Jan. 20, 2014 Date of Test : Jan. 20, 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: 01-10) XX could be 01-10, indicate for different packages, different costumer No. and different painting color of metal enclosure. Prepared by: Leading Testing Laboratories 3 of 16
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 Prepared by: Leading Testing Laboratories 4 of 16
Sample Photos Figure 1- Overview of the sample Equipment Under Test (EUT) Name : LED CEILING LIGHT Model : 540751XX (XX: 01-10) Electrical Ratings : 100-277 V ac, 50/60Hz, 22W 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 Prepared by: Leading Testing Laboratories 5 of 16
TEST RESULTS Test ambient temperature was 25.3. Test orientation was Light down. Test was conducted without a dimmer in the circuit. The stabilization time of the sample was 70 minutes, and the total operating time including stabilization was 105 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 87 Test Current (A) 0.179 0.216 0.084 R3 94 Power Factor 0.9798 0.9789 0.8975 R4 80 Test Power (W) 21.1 21.1 20.8 R5 78 Off state Power (W) 0 0 0 R6 82 THD A% 12.92 12.75 15.63 R7 88 Luminous Efficacy (lm/w) 80.1 R8 65 Total Luminous Flux (lm) 1690.8 R9 20 Color Rendering Index (CRI) 81.8 R10 70 R9 20 R11 77 Correlated Color Temperature (CCT) (K) 2707 R12 60 Chromaticity (Chroma x, Chroma y) (0.4670, 0.4243) R13 81 Chromaticity (Chroma u, Chroma v) (0.2610, 0.3557) R14 96 Chromaticity (Chroma u, Chroma v ) (0.2610, 0.5335) Duv 0.0044 Center Beam Candle Power (cd) 488 Spacing Criteria 1.24 (0-180 ) 1.26 (90-270 ) Beam Angle ( ) 115.2 Zonal Lumens in the 0-60 Zone 66.04% Zonal Lumens in the 60-90 Zone 24.82% Zonal Lumens in the 90-120 Zone 5.83% Zonal Lumens in the 120-180 Zone 3.31% Table2: 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). Prepared by: Leading Testing Laboratories 6 of 16
Spectral Power Distribution - Sphere Spectroradiometer Method Chart 1: Spectral Power Distribution Prepared by: Leading Testing Laboratories 7 of 16
Zonal Lumen Tabulation- Goniophotometer Method γ( ) Lumens % Total 0-10 46.237 2.73% 10-20 132.684 7.85% 20-30 201.832 11.94% 30-40 244.627 14.47% 40-50 255.76 15.13% 50-60 235.417 13.92% 60-70 192.025 11.36% 70-80 138.953 8.22% 80-90 88.716 5.25% 90-100 50.36 2.98% 100-110 28.214 1.67% 110-120 19.98 1.18% 120-130 17.051 1.01% 130-140 14.196 0.84% 140-150 11.215 0.66% 150-160 8.025 0.47% 160-170 4.315 0.26% 170-180 1.169 0.07% Total 1690.8 100% γ( ) Lumens % Total 0-60 1116.557 66.04% 60-90 419.694 24.82% 0-90 1536.251 90.86% 90-180 154.525 9.14% 0-180 1690.8 100% Table 2: Zonal Lumen Data Prepared by: Leading Testing Laboratories 8 of 16
Illuminance Plots- Goniophotometer Method Chart 2: Beam angle Chart 3: Illuminance Plot (Footcandles) Prepared by: Leading Testing Laboratories 9 of 16
Luminous Intensity Distribution Plots- Goniophotometer Method Chart 4: Isocandela Plot Chart 5: Polar Candela Distribution Prepared by: Leading Testing Laboratories 10 of 16
Luminous Intensity Data- Goniophotometer Method Table 3: Luminous Intensity Data Prepared by: Leading Testing Laboratories 11 of 16
Table 4: Luminous Intensity Data- continuous Prepared by: Leading Testing Laboratories 12 of 16
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 0.2611 0.5336 0.2611 0.5336 10 0.2611 0.5335 0.2610 0.5335 20 0.2612 0.5335 0.2611 0.5335 30 0.2610 0.5335 0.2611 0.5335 40 0.2612 0.5335 0.2609 0.5335 50 0.2609 0.5335 0.2611 0.5335 60 0.2609 0.5335 0.2610 0.5335 70 0.2607 0.5336 0.2608 0.5335 80 0.2606 0.5336 0.2608 0.5335 90 0.2603 0.5337 0.2603 0.5334 Table 7: Chromaticity per Measurement Angle Weighted Average u' v' 0.2610 0.5335 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 0.0001 0.0001 0.0001 0.0001 10 0.0001 0.0000 0.0000 0.0000 20 0.0002 0.0000 0.0001 0.0000 30 0.0000 0.0000 0.0001 0.0000 40 0.0002 0.0000 0.0001 0.0000 50 0.0001 0.0000 0.0001 0.0000 60 0.0001 0.0000 0.0000 0.0000 70 0.0003 0.0001 0.0002 0.0000 80 0.0004 0.0001 0.0002 0.0000 90 0.0007 0.0002 0.0007 0.0001 Table 8: Chromatic Spatial Uniformity Spatial non-uniformity of chromaticity u'v': 0.0007. Prepared by: Leading Testing Laboratories 13 of 16
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 5: 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. Prepared by: Leading Testing Laboratories 14 of 16
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' Prepared by: Leading Testing Laboratories 15 of 16
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. Prepared by: Leading Testing Laboratories 16 of 16