LM 80 Test Report NS2L157AR H3

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Page 1 of 17 LM 80 Test Report NS2L157AR H3 Issue Date: November 25, 2011 Revision Date: June 12, 2012 Test Initiation Date: April 4, 2011 Test Completion Date: June 7, 2012 Test Duration: 10,000

1 Page 1 of 17 LM 80 Test Report NS2L157AR H3 Issue Date: November 25, 2011 Revision Date: June 12, 2012 Test Initiation Date: April 4, 2011 Test Completion Date: June 7, 2012 Test Duration: 10,000 hours Report Number: SQETML Customer Information: Company Name: Address: Nichia Corporation , Oka, Kaminaka cho, Anan shi, Tokushima, , JAPAN Description of Test Samples: Classification: Package Model Name: Warm White Model Number: NS2L157AR H3 (Nominal CCT: 2700K) Test Summary: Data Set Case Temperature [T S ] Ambient Temperature [T A ] Drive Current [I F ] Lumen Maintenance at 10,000 hours Chromaticity Shift (Δu'v') at 10,000 hours TM 21 Projection L 70 (10K) 1 55 C > 50 C 96.0% > hours 2 85 C > 80 C 95.6% > hours C > 100 C 89.3% hours Approved Signatory: Masanobu TANAKA, Lab Manager Nichia Corporation Testing Laboratory , Oka, Kaminaka cho, Anan shi, Tokushima, , JAPAN

2 Page 2 of 17 IES LM Test Report Requirement : 1. Number of light sources tested See tables. 2. Description of light sources See Description of Test Samples 3. Description of auxiliary equipment Active cooling life test system Consisting of small boxes, in which each box contains a reliability test board, and a water cooled heat sink or a heater to control device temperature. Tester Consisting of an integrating sphere, a programmable current source meter, and a spectroradiometer. 4. Operating cycle Constant direct current (DC). 5. Ambient conditions including airflow, temperature, and relative humidity Ambient Temperature (T A ) : See tables Ambient temperature is the temperature of the air at a distance of 1.5 mm above the reliability test board. Air flow : < 0.1m/s Relative Humidity : < 45% 6. Case temperature (test point temperature) See tables. For the case temperature (T S ) measurement point, see the figure below. Ts point Drive current of the light sources during lifetime test See tables. 8. Initial luminous flux and forward voltage at photometric measurement current See tables. 9. Lumen maintenance data for each individual light source along with median value, standard deviation, minimum and maximum lumen maintenance value for all of the light sources. See tables. 10. Observation of light sources failures including the failure conditions and time of failure. No failure observed 11. light source monitoring interval See tables. 12. Photometric measurement uncertainty Flux measurement: 4.8% (k=2) Lumen maintenance: 1.8% (k=2) 13. Chromaticity shift reported over the measurement time. See tables.

3 Page 3 of 17 Data Set 1 : 55 C, Actual Case Temperature [T S ] 56.4 C Actual Ambient Temperature [T A ] 55.2 C Lumen Maintenance (%) Relative Forward Voltage (%) Chromaticity Shift (Δu'v') u' u'v' Avg. R=0.007 R= v'

4 Page 4 of 17 Data Set 1 : 55 C, Actual Case Temperature [T S ] 56.4 C Actual Ambient Temperature [T A ] 55.2 C TABLE 1 1 Initial Characteristics Luminous flux Φ V [lm] Forward voltage V F [V] CCT T CP [K] CIE1931 x y u' CIE1976 v' n Avg Med σ Min Max

5 Page 5 of 17 Data Set 1 : 55 C, Actual Case Temperature [T S ] 56.4 C Actual Ambient Temperature [T A ] 55.2 C TABLE 1 2 Lumen Maintenance Lumen Maintenance % ( Normalized to 100% at 0 hours ) 0 h 505 h 1021 h 1711 h 2401 h 3174 h 3840 h 4502 h 5311 h 6015 h 6800 h 7610 h 8440 h 9270 h h Avg Med σ Min Max Ave min Max Ave TM 21 Projection Time 0 h 505 h 1021 h 1711 h 2401 h 3174 h 3840 h 4502 h 5311 h 6015 h 6800 h 7610 h 8440 h 9270 h h ln(avg.) Test duration used B 4502 h to h Curve fit equation: Φ(t)=Bexp( αt) α E 06 R Lumen maintenance life eqation: Calculated L 70 (10K) hours L 70 =ln(b/0.7)/α Reported L 70 (10K) > hours

6 Page 6 of 17 Data Set 1 : 55 C, Actual Case Temperature [T S ] 56.4 C Actual Ambient Temperature [T A ] 55.2 C TABLE 1 3 Forward Voltage Relative Forward Voltage % ( Normalized to 100% at 0 hours ) 0 h 505 h 1021 h 1711 h 2401 h 3174 h 3840 h 4502 h 5311 h 6015 h 6800 h 7610 h 8440 h 9270 h h Avg Med σ Min Max Ave min Max Ave

7 Page 7 of 17 Data Set 1 : 55 C, Actual Case Temperature [T S ] 56.4 C Actual Ambient Temperature [T A ] 55.2 C TABLE 1 4 Chromaticity Shift Chromaticity Shift Δu'v' 0 h 505 h 1021 h 1711 h 2401 h 3174 h 3840 h 4502 h 5311 h 6015 h 6800 h 7610 h 8440 h 9270 h h Avg Med σ Min Max Ave min Max Ave

8 Page 8 of 17 Data Set 2 : 85 C, Actual Case Temperature [T S ] 86.2 C Actual Ambient Temperature [T A ] 85.3 C Lumen Maintenance (%) Relative Forward Voltage (%) Chromaticity Shift (Δu'v') u' u'v' Avg. R=0.007 R= v'

9 Page 9 of 17 Data Set 2 : 85 C, Actual Case Temperature [T S ] 86.2 C Actual Ambient Temperature [T A ] 85.3 C TABLE 2 1 Initial Characteristics Luminous flux Φ V [lm] Forward voltage V F [V] CCT CIE1931 CIE1976 T CP [K] x y u' v' n Avg Med σ Min Max

10 Page 10 of 17 Data Set 2 : 85 C, Actual Case Temperature [T S ] 86.2 C Actual Ambient Temperature [T A ] 85.3 C TABLE 2 2 Lumen Maintenance Lumen Maintenance % ( Normalized to 100% at 0 hours ) 0 h 505 h 1020 h 1710 h 2400 h 3173 h 3839 h 4501 h 5310 h 6014 h 6798 h 7608 h 8438 h 9269 h h Avg Med σ Min Max Ave min Max Ave TM 21 Projection Time 0 h 505 h 1020 h 1710 h 2400 h 3173 h 3839 h 4501 h 5310 h 6014 h 6798 h 7608 h 8438 h 9269 h h ln(avg.) Test duration used B 4501 h to h Curve fit equation: Φ(t)=Bexp( αt) α E 06 R Lumen maintenance life eqation: Calculated L 70 (10K) hours L 70 =ln(b/0.7)/α Reported L 70 (10K) > hours

11 Page 11 of 17 Data Set 2 : 85 C, Actual Case Temperature [T S ] 86.2 C Actual Ambient Temperature [T A ] 85.3 C TABLE 2 3 Forward Voltage Relative Forward Voltage % ( Normalized to 100% at 0 hours ) 0 h 505 h 1020 h 1710 h 2400 h 3173 h 3839 h 4501 h 5310 h 6014 h 6798 h 7608 h 8438 h 9269 h h Avg Med σ Min Max Ave min Max Ave

12 Page 12 of 17 Data Set 2 : 85 C, Actual Case Temperature [T S ] 86.2 C Actual Ambient Temperature [T A ] 85.3 C TABLE 2 4 Chromaticity Shift Chromaticity Shift Δu'v' 0 h 505 h 1020 h 1710 h 2400 h 3173 h 3839 h 4501 h 5310 h 6014 h 6798 h 7608 h 8438 h 9269 h h Avg Med σ Min Max Ave min Max Ave

13 Page 13 of 17 Data Set 3 : 105 C, Actual Case Temperature [T S ] C Actual Ambient Temperature [T A ] C Lumen Maintenance (%) Relative Forward Voltage (%) Chromaticity Shift (Δu'v') u' u'v' Avg. R=0.007 R= v'

14 Page 14 of 17 Data Set 3 : 105 C, Actual Case Temperature [T S ] C Actual Ambient Temperature [T A ] C TABLE 3 1 Initial Characteristics Luminous flux Φ V [lm] Forward voltage V F [V] CCT CIE1931 T CP [K] x y u' CIE1976 v' n Avg Med σ Min Max

15 Page 15 of 17 Data Set 3 : 105 C, Actual Case Temperature [T S ] C Actual Ambient Temperature [T A ] C TABLE 3 2 Lumen Maintenance Lumen Maintenance % ( Normalized to 100% at 0 hours ) 0 h 505 h 1021 h 1712 h 2402 h 3174 h 3840 h 4502 h 5312 h 6015 h 6800 h 7611 h 8441 h 9271 h h Avg Med σ Min Max Ave min Max Ave TM 21 Projection Time 0 h 505 h 1021 h 1712 h 2402 h 3174 h 3840 h 4502 h 5312 h 6015 h 6800 h 7611 h 8441 h 9271 h h ln(avg.) Test duration used B 4502 h to h Curve fit equation: Φ(t)=Bexp( αt) α E 06 R Lumen maintenance life eqation: Calculated L 70 (10K) hours L 70 =ln(b/0.7)/α Reported L 70 (10K) hours

16 Page 16 of 17 Data Set 3 : 105 C, Actual Case Temperature [T S ] C Actual Ambient Temperature [T A ] C TABLE 3 3 Forward Voltage Relative Forward Voltage % ( Normalized to 100% at 0 hours ) 0 h 505 h 1021 h 1712 h 2402 h 3174 h 3840 h 4502 h 5312 h 6015 h 6800 h 7611 h 8441 h 9271 h h Avg Med σ Min Max Ave min Max Ave

17 Page 17 of 17 Data Set 3 : 105 C, Actual Case Temperature [T S ] C Actual Ambient Temperature [T A ] C TABLE 3 4 Chromaticity Shift Chromaticity Shift Δu'v' 0 h 505 h 1021 h 1712 h 2402 h 3174 h 3840 h 4502 h 5312 h 6015 h 6800 h 7611 h 8441 h 9271 h h Avg Med σ Min Max Ave min Max Ave

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