IES LM-80-08 Test Report For Hangzhou Hangke Optoelectronics Joint Stock Co., LTD Hangke Industrial Park, 33 Xianxing Road, Xianlin Industrial Zone, Hangzhou LED Package Model: TOP LED 2835 Laboratory: Leading Testing Laboratories NVLAP CODE: 200960-0 a Tel: +86-571-56680806 www.ledtestlab.com Report : HZ12090009a The laboratory that conducted the t testing detailed in this report has been accreditedd for SSL by NVLAP. Test specifications: Date of Receipt Date of Test Test item Referencee Standard : Sep. 17, 2012 : Sep. 18, 2012 to Jul. 10, 2013 : 6000 hours Lumen Maintenance, 60000 hours Chromaticity Shift : IES LM-80-2008 Approved Method for f Measuring Lumen Maintenance of LED Light Source Review by: Approved by: Engineer: April Zou July.12, 2013 Manager: Jim Zhang July.12, 2013 Note: This report does not imply product certification, approval, or endorsement byy NVLAP, NIST, or any agency of the Federal Government.
Test Summary Ts ( ) Average Lumen Maintenance (%) at 6000 hours Average Chromaticity Drive Current (A) Number of LED Light Sources Tested 55 0.06 25 98.71% 0.0021 70 0.06 25 96.10% 0.0027 85 0.06 25 91.64% 0.0040 IES LM-80-08 Test Report Requirement: 1. Number of LED Light Sources Tested See test summary. ( u v ) at 6000 hours 2. Description of LED light sources Device under test is LED package with model number: TOP LED 2835, nominal CCT 3000K. 3. Description of auxiliary equipment Lifetest thermal chamber NMT 830 Lifetest current source Itech IT6720 Lifetest data recorder GRAPHTEC GL820 Photometric test current source Itech IT6154 Photometric test system 0.5m Integrate Sphere system 4. Operating cycle LEDs are driven with a constant direct current (DC). 5. Ambient conditions including airflow, temperature, and relative humidity Ambient Temperature (Ta): See Tables Humidity: <65% No force air flow 6. Case temperatures (test point temperature) In all cases, both Ts and Ta meet the IES LM-80-08 limits. Ts Point Prepared by: Leading Testing Laboratories Co., Ltd Page 2 of 10
7. Drive current of the LED light source during Lumen maintenance test. See tables. 8. Initial luminous flux and forward voltage at photometric measurement current See tables. 9. Lumen maintenance for 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 LED light source failures including the failure conditions and time of failure No failures observed. 11. LED light source monitoring interval See tables 12. Photometric measurement uncertainty Flux measurement: 1.39% (k=2) 13. Chromaticity shift reported over the measurement time See tables. 14. Sampling Method/ size IES LM-80 tests require LED samples to be operated at a minimum of a single current and three temperatures of 55C, 85C and a third temperature picked by the LED manufacturer. 75 pieces of LED samples are selected randomly from different production date of products. These samples are picked to represent a wide parametric distribution. Prepared by: Leading Testing Laboratories Co., Ltd Page 3 of 10
Test Result: Case temperature: 55 Lumen Maintenance Data: 0h Lumen Maintenace (%) Vf(V) Flux (lm) 1000h 2000h 3000h 4000h 5000h 6000h 1 2.93 22.85 99.43% 101.73% 100.70% 101.44% 101.17% 100.03% 2 2.96 23.89 99.46% 101.46% 100.25% 98.41% 98.13% 97.03% 3 2.96 23.91 99.50% 100.82% 100.68% 99.00% 98.76% 97.67% 4 2.96 23.65 99.45% 101.88% 100.46% 99.58% 99.29% 98.18% 5 2.93 23.54 99.62% 102.84% 101.62% 100.13% 99.96% 98.87% 6 2.96 23.46 99.45% 101.25% 100.24% 99.53% 99.26% 98.07% 7 2.96 22.96 99.83% 103.41% 102.42% 101.18% 101.02% 99.89% 8 2.96 23.22 99.44% 102.43% 101.36% 100.30% 100.02% 98.84% 9 2.93 23.68 100.13% 102.19% 100.29% 100.38% 100.17% 99.06% 10 2.96 21.62 99.44% 101.15% 101.19% 100.28% 100.05% 98.84% 11 2.97 22.85 99.43% 103.59% 100.79% 100.66% 100.37% 99.26% 12 2.96 23.39 99.40% 102.22% 101.01% 99.14% 98.96% 97.79% 13 2.97 22.70 99.43% 103.45% 102.53% 101.19% 100.97% 99.82% 14 2.96 23.05 99.44% 104.08% 102.50% 100.61% 100.45% 99.31% 15 2.96 23.08 99.74% 102.60% 101.01% 100.87% 100.71% 99.53% 16 2.95 23.44 99.57% 102.53% 100.24% 99.83% 99.63% 98.45% 17 2.97 23.38 99.40% 102.79% 100.32% 99.27% 99.04% 97.86% 18 2.93 24.17 99.42% 99.60% 97.96% 98.92% 98.74% 97.65% 19 2.96 23.87 99.41% 101.42% 100.17% 99.20% 99.02% 97.84% 20 2.94 22.82 99.43% 100.14% 100.30% 101.10% 100.85% 99.72% 21 2.94 23.34 99.40% 101.95% 101.06% 101.41% 101.19% 100.10% 22 2.96 23.52 99.57% 102.62% 101.31% 100.04% 99.84% 98.68% 23 2.98 23.50 99.87% 102.27% 100.11% 100.09% 99.92% 98.73% 24 2.96 23.31 99.53% 103.54% 100.62% 100.34% 100.14% 99.03% 25 2.96 23.97 99.00% 100.35% 98.78% 98.79% 98.55% 97.42% Avg 2.95 23.33 99.51% 102.09% 100.72% 100.07% 99.85% 98.71% Max 2.98 24.17 100.13% 104.08% 102.53% 101.44% 101.19% 100.10% Min 2.93 21.62 99.00% 99.60% 97.96% 98.41% 98.13% 97.03% Lumen Maintenance 55 Lumen maitenance % 105.00% 100.00% 95.00% 90.00% 85.00% 80.00% 75.00% 70.00% Prepared by: Leading Testing Laboratories Co., Ltd Page 4 of 10
Case temperature: 55 Chromaticity Shift Data: 0h Chromaticity Shift u v CCT K 1000h 2000h 3000h 4000h 5000h 6000h 1 0.2475 0.5262 3044 0.0004 0.0010 0.0011 0.0016 0.0018 0.0018 2 0.2499 0.5271 2982 0.0009 0.0012 0.0017 0.0018 0.0016 0.0017 3 0.2491 0.5262 3004 0.0009 0.0008 0.0009 0.0013 0.0015 0.0016 4 0.2486 0.5252 3024 0.0007 0.0019 0.0015 0.0015 0.0014 0.0017 5 0.2482 0.5264 3026 0.0007 0.0015 0.0014 0.0018 0.0017 0.0020 6 0.2482 0.5237 3043 0.0008 0.0011 0.0017 0.0020 0.0015 0.0018 7 0.2501 0.5273 2976 0.0004 0.0013 0.0016 0.0020 0.0022 0.0025 8 0.2485 0.5262 3019 0.0007 0.0018 0.0017 0.0020 0.0017 0.0021 9 0.2486 0.5270 3013 0.0006 0.0010 0.0016 0.0021 0.0022 0.0024 10 0.2499 0.5289 2971 0.0003 0.0016 0.0019 0.0017 0.0018 0.0021 11 0.2489 0.5277 3003 0.0007 0.0012 0.0015 0.0019 0.0019 0.0020 12 0.2498 0.5273 2983 0.0007 0.0016 0.0015 0.0015 0.0016 0.0018 13 0.2493 0.5289 2984 0.0007 0.0017 0.0015 0.0017 0.0020 0.0021 14 0.2485 0.5265 3019 0.0004 0.0007 0.0014 0.0015 0.0016 0.0018 15 0.2495 0.5283 2984 0.0009 0.0008 0.0015 0.0015 0.0013 0.0016 16 0.2488 0.5262 3012 0.0009 0.0008 0.0015 0.0015 0.0019 0.0024 17 0.2494 0.5273 2993 0.0009 0.0014 0.0020 0.0021 0.0019 0.0021 18 0.2487 0.5282 3003 0.0009 0.0037 0.0036 0.0034 0.0024 0.0025 19 0.2496 0.5287 2978 0.0006 0.0021 0.0030 0.0030 0.0024 0.0029 20 0.2484 0.5261 3023 0.0003 0.0010 0.0016 0.0020 0.0019 0.0022 21 0.2491 0.5253 3007 0.0006 0.0011 0.0010 0.0014 0.0021 0.0026 22 0.2494 0.5265 3001 0.0004 0.0009 0.0014 0.0015 0.0017 0.0020 23 0.2488 0.5262 3012 0.0005 0.0014 0.0014 0.0017 0.0021 0.0026 24 0.2496 0.5278 2983 0.0005 0.0011 0.0015 0.0017 0.0019 0.0022 25 0.2490 0.5273 3001 0.0005 0.0009 0.0019 0.0015 0.0014 0.0016 Avg 0.2490 0.5269 3004 0.0006 0.0013 0.0017 0.0018 0.0018 0.0021 Max 0.2501 0.5289 3044 0.0009 0.0037 0.0036 0.0034 0.0024 0.0029 Min 0.2475 0.5237 2971 0.0003 0.0007 0.0009 0.0013 0.0013 0.0016 Chromaticity Shift at 55 u'v' 2.50% 2.00% 1.50% 1.00% 0.50% 0.00% Prepared by: Leading Testing Laboratories Co., Ltd Page 5 of 10
Case temperature: 70 Lumen Maintenance Data: 0h Lumen Maintenace (%) Vf(V) Flux (lm) 1000h 2000h 3000h 4000h 5000h 6000h 26 2.97 22.42 99.29% 99.76% 99.57% 98.04% 97.76% 96.90% 27 2.95 23.81 99.41% 100.46% 97.92% 98.07% 97.78% 96.84% 28 2.94 24.12 99.17% 98.01% 97.22% 96.89% 96.53% 95.67% 29 2.95 23.56 99.28% 101.57% 98.61% 97.33% 97.01% 96.09% 30 2.97 24.06 100.08% 101.61% 97.61% 97.84% 97.49% 96.53% 31 2.93 23.74 99.41% 102.06% 98.67% 98.06% 97.72% 96.83% 32 2.94 23.35 99.10% 101.73% 98.20% 96.36% 96.14% 95.24% 33 2.96 22.89 98.12% 98.89% 96.11% 98.08% 97.92% 97.06% 34 2.95 23.47 99.40% 101.21% 98.13% 97.95% 97.58% 96.66% 35 2.96 23.67 99.41% 101.53% 97.68% 97.00% 96.71% 95.77% 36 2.96 23.80 99.54% 100.37% 97.23% 96.97% 96.82% 95.86% 37 2.96 23.25 99.53% 101.67% 97.49% 96.73% 96.39% 95.50% 38 2.95 23.75 99.20% 100.62% 98.04% 97.73% 97.58% 96.65% 39 2.94 23.74 99.37% 100.23% 98.37% 96.71% 96.41% 95.50% 40 2.96 23.78 99.41% 101.45% 97.53% 96.80% 96.58% 95.73% 41 2.96 23.81 99.50% 101.41% 98.42% 97.35% 97.05% 96.11% 42 2.96 24.21 99.38% 99.65% 96.92% 96.78% 96.40% 95.54% 43 2.96 24.11 99.67% 100.24% 96.95% 96.43% 96.06% 95.15% 44 2.94 23.98 99.42% 100.13% 97.16% 96.79% 96.43% 95.50% 45 2.94 23.60 99.62% 100.61% 97.50% 96.95% 96.67% 95.74% 46 2.96 24.01 99.42% 100.70% 97.82% 96.50% 96.33% 95.46% 47 2.96 24.38 100.16% 100.74% 98.16% 97.62% 97.24% 96.40% 48 2.96 23.73 99.41% 100.93% 97.95% 98.90% 98.56% 97.68% 49 2.95 24.44 99.39% 98.08% 97.14% 96.69% 96.31% 95.35% 50 2.95 23.15 99.52% 99.48% 97.46% 98.01% 97.69% 96.83% Avg 2.95 23.71 99.41% 100.53% 97.75% 97.30% 97.01% 96.10% Max 2.97 24.44 100.16% 102.06% 99.57% 98.90% 98.56% 97.68% Min 2.93 22.42 98.12% 98.01% 96.11% 96.36% 96.06% 95.15% Lumen Maintenance 70 Lumen maitenance % 105.00% 100.00% 95.00% 90.00% 85.00% 80.00% 75.00% 70.00% Prepared by: Leading Testing Laboratories Co., Ltd Page 6 of 10
Case temperature: 70 Chromaticity Shift Data: 0h Chromaticity Shift u v CCT K 1000h 2000h 3000h 4000h 5000h 6000h 26 0.2492 0.5267 3001 0.0007 0.0012 0.0021 0.0028 0.0024 0.0027 27 0.2492 0.5268 3002 0.0004 0.0023 0.0022 0.0030 0.0028 0.0032 28 0.2495 0.5285 2982 0.0004 0.0026 0.0044 0.0041 0.0043 0.0047 29 0.2481 0.5243 3043 0.0004 0.0012 0.0016 0.0022 0.0019 0.0019 30 0.2479 0.5264 3035 0.0006 0.0011 0.0015 0.0025 0.0019 0.0022 31 0.2481 0.5264 3029 0.0006 0.0018 0.0032 0.0033 0.0029 0.0032 32 0.2488 0.5249 3022 0.0005 0.0015 0.0023 0.0022 0.0013 0.0016 33 0.2473 0.5268 3046 0.0008 0.0021 0.0027 0.0030 0.0026 0.0030 34 0.2487 0.5257 3018 0.0012 0.0010 0.0021 0.0022 0.0020 0.0023 35 0.2488 0.5273 3006 0.0008 0.0023 0.0035 0.0038 0.0037 0.0040 36 0.2474 0.5264 3047 0.0006 0.0019 0.0025 0.0022 0.0022 0.0024 37 0.2499 0.5277 2978 0.0008 0.0019 0.0030 0.0030 0.0028 0.0031 38 0.2485 0.5252 3027 0.0006 0.0009 0.0015 0.0016 0.0019 0.0018 39 0.2489 0.5265 3009 0.0007 0.0013 0.0016 0.0021 0.0021 0.0022 40 0.2493 0.5270 2996 0.0007 0.0015 0.0020 0.0023 0.0021 0.0024 41 0.2489 0.5278 3000 0.0006 0.0012 0.0025 0.0028 0.0025 0.0027 42 0.2500 0.5280 2973 0.0006 0.0014 0.0020 0.0020 0.0017 0.0020 43 0.2480 0.5271 3028 0.0010 0.0026 0.0034 0.0041 0.0039 0.0041 44 0.2485 0.5257 3023 0.0008 0.0012 0.0022 0.0019 0.0018 0.0021 45 0.2476 0.5257 3045 0.0004 0.0011 0.0017 0.0024 0.0025 0.0028 46 0.2492 0.5267 3000 0.0007 0.0014 0.0020 0.0033 0.0028 0.0031 47 0.2504 0.5297 2954 0.0005 0.0011 0.0019 0.0025 0.0022 0.0025 48 0.2496 0.5280 2984 0.0007 0.0016 0.0024 0.0025 0.0020 0.0023 49 0.2475 0.5253 3050 0.0007 0.0021 0.0028 0.0026 0.0028 0.0032 50 0.2483 0.5256 3029 0.0006 0.0015 0.0019 0.0027 0.0025 0.0026 Avg 0.2487 0.5266 3013 0.0007 0.0016 0.0024 0.0027 0.0025 0.0027 Max 0.2504 0.5297 3050 0.0012 0.0026 0.0044 0.0041 0.0043 0.0047 Min 0.2473 0.5243 2954 0.0004 0.0009 0.0015 0.0016 0.0013 0.0016 Chromaticity Shift at 70 u'v' 2.50% 2.00% 1.50% 1.00% 0.50% 0.00% Prepared by: Leading Testing Laboratories Co., Ltd Page 7 of 10
Case temperature: 85 Lumen Maintenance Data: 0h Lumen Maintenace (%) Vf(V) Flux (lm) 1000h 2000h 3000h 4000h 5000h 6000h 51 2.95 23.41 99.19% 96.92% 95.56% 94.15% 93.91% 93.13% 52 2.94 23.32 99.44% 99.15% 96.11% 91.47% 90.80% 89.97% 53 2.96 22.86 99.56% 100.33% 98.18% 93.96% 93.32% 92.51% 54 2.96 23.43 99.57% 99.26% 96.01% 92.87% 92.10% 91.29% 55 2.96 22.77 99.43% 100.82% 96.53% 92.18% 91.50% 90.71% 56 2.96 23.08 99.44% 100.27% 97.73% 93.41% 93.25% 92.39% 57 2.94 23.21 99.44% 100.96% 97.45% 92.72% 92.42% 91.54% 58 2.95 23.48 99.28% 99.18% 95.15% 92.76% 92.31% 91.44% 59 2.94 23.45 99.53% 100.85% 97.86% 92.75% 92.37% 91.49% 60 2.98 23.23 99.44% 99.98% 97.68% 93.76% 93.04% 92.18% 61 2.95 21.13 99.43% 98.70% 94.94% 92.29% 92.10% 91.28% 62 2.95 23.12 99.09% 99.65% 95.92% 94.42% 93.71% 92.90% 63 2.96 22.82 99.43% 102.28% 99.75% 94.17% 93.75% 92.98% 64 2.95 23.16 99.44% 101.18% 98.24% 93.65% 93.04% 92.22% 65 2.95 22.05 99.09% 98.99% 98.46% 94.10% 93.53% 92.69% 66 2.95 23.16 99.22% 100.37% 97.04% 94.13% 93.52% 92.69% 67 2.94 23.66 99.41% 100.31% 98.04% 92.22% 92.03% 91.18% 68 2.94 23.49 99.36% 99.75% 96.25% 91.19% 90.67% 89.88% 69 2.96 23.16 99.44% 101.13% 98.11% 91.11% 90.79% 89.92% 70 2.95 23.18 99.01% 100.02% 95.58% 93.96% 93.55% 92.70% 71 2.95 23.35 99.44% 100.88% 97.04% 94.00% 93.65% 92.86% 72 2.95 23.22 99.18% 99.89% 95.99% 91.17% 90.61% 89.72% 73 2.94 22.92 99.43% 99.07% 96.57% 91.88% 91.36% 90.52% 74 2.95 23.05 99.00% 97.08% 95.66% 91.02% 90.50% 89.73% 75 2.93 23.12 99.26% 100.81% 98.14% 94.81% 94.09% 93.19% Avg 2.95 23.07 99.34% 99.91% 96.96% 92.97% 92.48% 91.64% Max 2.98 23.66 99.57% 102.28% 99.75% 94.81% 94.09% 93.19% Min 2.93 21.13 99.00% 96.92% 94.94% 91.02% 90.50% 89.72% Lumen Maintenance 85 Lumen maitenance % 105.00% 100.00% 95.00% 90.00% 85.00% 80.00% 75.00% 70.00% Prepared by: Leading Testing Laboratories Co., Ltd Page 8 of 10
Case temperature: 85 Chromaticity Shift Data: 0h Chromaticity Shift u v CCT K 1000h 2000h 3000h 4000h 5000h 6000h 51 0.2485 0.5238 3036 0.0006 0.0028 0.0045 0.0052 0.0048 0.0053 52 0.2477 0.5238 3057 0.0004 0.0019 0.0038 0.0044 0.0044 0.0046 53 0.2488 0.5246 3024 0.0006 0.0017 0.0032 0.0036 0.0036 0.0041 54 0.2475 0.5267 3042 0.0003 0.0015 0.0033 0.0037 0.0032 0.0035 55 0.2483 0.5235 3042 0.0003 0.0009 0.0038 0.0047 0.0046 0.0049 56 0.2485 0.5257 3024 0.0005 0.0014 0.0030 0.0040 0.0037 0.0042 57 0.2485 0.5249 3030 0.0007 0.0013 0.0030 0.0034 0.0034 0.0037 58 0.2487 0.5249 3024 0.0004 0.0014 0.0029 0.0036 0.0036 0.0042 59 0.2481 0.5246 3041 0.0006 0.0014 0.0024 0.0031 0.0029 0.0034 60 0.2481 0.5247 3039 0.0002 0.0016 0.0027 0.0036 0.0035 0.0039 61 0.2478 0.5240 3051 0.0008 0.0025 0.0038 0.0041 0.0041 0.0043 62 0.2476 0.5246 3053 0.0004 0.0018 0.0036 0.0040 0.0042 0.0046 63 0.2485 0.5264 3019 0.0004 0.0013 0.0028 0.0031 0.0032 0.0034 64 0.2480 0.5241 3046 0.0006 0.0013 0.0027 0.0028 0.0028 0.0030 65 0.2495 0.5268 2992 0.0007 0.0017 0.0028 0.0034 0.0031 0.0035 66 0.2477 0.5244 3051 0.0006 0.0016 0.0032 0.0032 0.0032 0.0036 67 0.2485 0.5252 3027 0.0006 0.0021 0.0036 0.0043 0.0040 0.0044 68 0.2480 0.5273 3026 0.0006 0.0011 0.0028 0.0033 0.0031 0.0034 69 0.2472 0.5246 3063 0.0006 0.0010 0.0028 0.0033 0.0032 0.0036 70 0.2478 0.5268 3034 0.0007 0.0017 0.0034 0.0039 0.0037 0.0040 71 0.2477 0.5249 3049 0.0005 0.0017 0.0032 0.0036 0.0034 0.0037 72 0.2478 0.5243 3050 0.0004 0.0019 0.0037 0.0040 0.0041 0.0045 73 0.2480 0.5243 3045 0.0005 0.0021 0.0033 0.0043 0.0042 0.0044 74 0.2488 0.5240 3028 0.0007 0.0021 0.0028 0.0036 0.0035 0.0038 75 0.2489 0.5256 3015 0.0004 0.0013 0.0029 0.0039 0.0036 0.0039 Avg 0.2482 0.5250 3036 0.0005 0.0016 0.0032 0.0038 0.0036 0.0040 Max 0.2495 0.5273 3063 0.0008 0.0028 0.0045 0.0052 0.0048 0.0053 Min 0.2472 0.5235 2992 0.0002 0.0009 0.0024 0.0028 0.0028 0.0030 Chromaticity Shift at 85 u'v' 2.50% 2.00% 1.50% 1.00% 0.50% 0.00% Prepared by: Leading Testing Laboratories Co., Ltd Page 9 of 10
HZ12090009a TM-21 Report: Table 1: Report at each LM-80 Test Condition Description of LED Light Source Tested (manufacturer, model) Hangzhou Hangke Optoelectronics Joint Stock Co., LTD Test Condition 1-55⁰C Case Temp Test Condition 2-70⁰C Case Temp Test Condition 3-85⁰C Case Temp size 25 size 25 size 25 Number of failures 0 Number of failures 0 Number of failures 0 DUT drive current used in the test (ma) 60 DUT drive current used in the test (ma) 60 DUT drive current used in the test (ma) 60 Test duration (hours) 6,000 Test duration (hours) 6,000 Test duration (hours) 6,000 Test duration used for projection (hour to hour) 1,000-6,000 Test duration used for projection (hour to hour) 1,000-6,000 Test duration used for projection (hour to hour) 1,000-6,000 Tested case temperature (⁰C) 55 Tested case temperature (⁰C) 70 Tested case temperature (⁰C) 85 α 3.260E-06 α 6.390E-06 α 1.936E-05 B 1.013 B 1.003 B 1.022 Calculated L70(6k) (hours) 113,000 Calculated L70(6k) (hours) 56,000 Calculated L70(6k) (hours) Reported L70(6k) (hours) >36000 Reported L70(6k) (hours) >36000 Reported L70(6k) (hours) 20,000 20,000 End of the Report Prepared by: Leading Testing Laboratories Co., Ltd Page 10 of 10