LM Hour Interval Test Report. IES LM Approved Method for Measuring Lumen Maintenance of LED Light Sources

Transcription

1 LM Hour Interval Test Report IES LM Approved Method for Measuring Lumen Maintenance of LED Light Sources September 8, 2011 Report SAMG Test results reported for: TC1: 55 C, A TC2: 85 C, 0.050A TC3: 105 C, A Prepared for: SAMSUNG 314, Maetan 3 Dong, Yeontong Gu, Suwon City Gyeonggi Do , Korea Testing performed by: th Ave. Kirkland, WA Test report prepared by: Test report approved by: Laboratory Manager, Test and Measurement Services Director, Test and Measurement Services in full without permission of. Page 1 of 10

2 Report: SAMG Statement of test conditons, summary of results, and reporting requirements: Part number: Life test conditions Summary of results Test Drive current Case temperature Elapsed life test Average lumen Maximum chromaticity condition (A) ( C) time (hrs) maintenance (%) shift (Δu'v') LM80 08 Reporting requirements 1. Number of samples tested: per test condtion 2. Description of LED light sources LED Package 1 single die emitter 3. Description of auxiliary equipment see section 6.1 below 4. Operating cycle LED packages are driven at constant current for both life test and photometric test. 5. Ambient conditions, airflow, relative humidity 6. Case temperature (test point temperature) 7. Drive current during life test see summary table above 8. Initial luminous flux and forward see data tables for individual test conditions voltage 9. Lumen maintenance data for each see data tables for individual test conditions individual LED light source 10. Observation of LED light source failures see data tables for individual test conditions 11. LED light source monitoring intervals see data tables for individual test conditions 12. Photometric measurement uncertainty LED's are operated on controlled thermal plates in an environment that complies with the requirements given in Section 4.4 of LM Case temperature (Ts): controlled to within 2 C, Surrounding air temp: controlled to within 5 C of Ts, Humidity: < 65 RH, No forced air flow See summary table above for test conditions. The temperature measurment point is the device cathode as shown in Fig k=2 expanded measurement uncertainty for relative luminous flux measurements is 2.0% 13. Chromaticity shift reported over the see data tables for individual test conditons measurement time Notes: 1. per ANSI/IESNA RP Addendum b, Nomenclature and Definitions for Illuminating Engineering in full without permission of. Page 2 of 10

3 Report: SAMG TEST CONDITION 1: 55 C A TABLE 2.1 LUMEN MAINTENANCE RESULTS TEST CONDITION 1: 55 C A measurements Photometric test ambient temperature: 25 ± 2 C Flux V F Lumen Maintenance (%) (lm) (V) n mean median std. dev min max E F E01 in full without permission of. Page 3 of 10

4 Report: SAMG TABLE 2.2 CHROMATICITY SHIFT RESULTS TEST CONDITION 1: 55 C A measurements Photometric test ambient temperature: 25 ± 2 C Chromaticity shift (Δu'v') Cx Cy CCT n mean median std. dev min max E F E01 in full without permission of. Page 4 of 10

5 Report: SAMG TEST CONDITION 2: 85 C A TABLE 3.1 LUMEN MAINTENANCE RESULTS TEST CONDITION 2: 85 C A measurements Photometric test ambient temperature: 25 ± 2 C Flux V F Lumen Maintenance (%) (lm) (V) n mean median std. dev min max D B01 7B in full without permission of. Page 5 of 10

6 Report: SAMG TABLE 3.2 CHROMATICITY SHIFT RESULTS TEST CONDITION 2: 85 C A measurements Photometric test ambient temperature: 25 ± 2 C Chromaticity shift (Δu'v') Cx Cy CCT n mean median std. dev min max D B01 7B in full without permission of. Page 6 of 10

7 Report: SAMG TEST CONDITION 3: 105 C A TABLE 4.1 LUMEN MAINTENANCE RESULTS TEST CONDITION 3: 105 C A measurements Photometric test ambient temperature: 25 ± 2 C Flux V F Lumen Maintenance (%) (lm) (V) n mean median std. dev min max B5401 6A in full without permission of. Page 7 of 10

8 Report: SAMG TABLE 4.2 CHROMATICITY SHIFT RESULTS TEST CONDITION 3: 105 C A measurements Photometric test ambient temperature: 25 ± 2 C Chromaticity shift (Δu'v') Cx Cy CCT n mean median std. dev min max B5401 6A in full without permission of. Page 8 of 10

9 Report: SAMG Charts: 105 Average Lumen Maintenance A Lumen Maintenance (%) C 85 C 105 C 91.8 %* 94.1 %** Time (hours) ENERGY STAR Requirements * residential indoor **residential outdoor and non residential Chromaticity Shift Δu'v' Maximum Chromaticity Shift For All Samples A 55 C 85 C 105 C 0.007* Time (hours) *ENERGY STAR Requirement Δu'v' chromaticity change based on CIE 1976 (u',v') diagram in full without permission of. Page 9 of 10

10 Report: SAMG Additional Information 6.1 Auxilliary Equipment Lifetest thermal chamber: Lifetest current source: Photometric test current source: Photometric test thermal control: Spectrometer: Integrating Sphere: Photometric reference standards: Thermal Platform resistive heating, liquid cooling, no forced air flow Vektrex SS200 Keithley 2425 TEC 100 SP 50 SphereOptics 20'' LabSphere SCL Additional Test Information 6.3 Photographs Fig. 1 Load board with 13 samples mounted on ETO integrating sphere for photometric testing. Absorption correction measurements are made for each load board measurement. Fig LED temperature measurement point. END OF REPORT in full without permission of. Page 10 of 10