#LM 79 Testing Lab

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One Stop Solution for All Testing Needs

At KC India Laboratories, our advanced salt spray testing lab provides accurate corrosion resistance evaluations, enabling you to enhance the durability and quality of your materials. Count on us for precise and insightful analyses that stand the test of time.

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LM-79 Testing Laboratory | LM 79 Testing Labs – KC India

LED-based solid-state lighting (SSL) products offer many advantages over incandescent lamps, but they present unique challenges for performance measurements. LM-79 was developed by the Illuminating Engineering Society (IES) to standardize the photometric and electrical measurements of LED-based SSL products and is the benchmark test for lighting manufacturers and numerous qualification programs.

KC India testing laboratory is ISO accredited by A2LA for LM-79 luminous flux (lumen) and color measurements.

KC India is also a Design Lights Consortium (DLC) approved LM-79 testing laboratory for lamps and luminaires.

Quick Lumen and Color Testing for Small and Large Luminaires

2-meter integrating sphere system equipped with high-precision spectro radiometer and integrated power management

Up to 52" wide LED luminaires in 4pi configuration with omni-directional standard lamp

Up to 24" wide LED luminaires in 2pi configuration with special forward flux standard lamp

TM-30 color calculations are also available as part of our LM-79 test reports

Photosynthetically Active Radiation (PAR) measurements for LED horticultural and grow lighting

Do you need a realiable testing partner for LM-79 testing and luminaire qualification? Contact us today to experience the KC India expert engineers, responsive scheduling, and trusted results.

Complete Luminaire Testing in One Location

KC India powerful combination of EMI/EMC, Environmental Stress, Photometric, and Wireless testing services help lighting manufacturers successfully validate every aspect of their products in one location.

FCC Part 15 RF Emissions Testing and TCB Certification for LEDs and Controls

CE Mark Compliance to EMC, Low Voltage, and Radio Equipment Directives

ANSI C136.31 Vibration Testing for Roadway Luminaires

IEC 60529 Ingress Protection (IP) Testing for Water and Dust

MIL-STD-810 Temperature and Humidity Exposure

ISTA Certified Test Laboratory for Product Packaging Validation

Electric Power/Utility-Grade Surge and Transient Protection Testing

Full-service Machine Shop to Design and Fabricate Custom Fixtures and Automation Solutions

LM 79 Testing labs | Vibration Testing Labs | IP Testing Labs | EMC Testing Lab

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Saudi Arabia-Lisun engineers install LSG-5000CCD LM-79 Type C Moving Detector Goniophotometer

The Saudi Arabian customer is a well-known local third-party testing laboratory that provides a wide range of testing services. This client also has a laboratory in Guangzhou. It mainly provides testing services for the lighting industry and electronic equipment in accordance with the requirements of the Saudi Standardization, Metrology and Quality Organization and the Gulf Certification Center for lighting and electronic industry. The customer is our VIP customer and has purchased equipments in our company many times before. This customer previously purchased 12 sets of equipment from our company, such as SY2036 Aging and Life Test Rack and LSRF-2 Lamp Start, Run-up time and Flicker Test and other equipments. Customers were still very satisfied with our products and after-sales service. Later, the customer wanted to expand their lighting test capabilities. After their engineers communicated with Lisun's engineers to confirm a series of questions about the darkroom laboratory, we recommended the LSG-5000CCD LM-79 Moving Detector Goniophotometer (Mirror Type C) according to the customer’s budget and requirements.  Finally the customer ordered two sets of LSG-5000CCD LM-79 Moving Detector Goniophotometers (Mirror Type C) in our company. One set was kept in their Guangzhou ‘s laboratory and the other was kept in their Saudi’s laboratory.

We arranged the productions soon after receiving the customer's order. While we were producing the equipments, our engineers designed the darkroom drawings according to the darkroom dimensions provided by the customer. After customers decorated the darkroom according to our darkroom drawings, their equipments were also completed. Our engineers first went to their Guangzhou laboratory for installation and training. After Guangzhou schedule finished, our engineer immediately went to their Saudi laboratory for installation and training. Because we have cooperated with this customer many times before, the installation and training operated smoothly and was completed quickly. The following were the photos taken by Lisun's engineers in the customer's Guangzhou ‘s laboratory and Saudi‘s laboratory:

Guangzhou's Laboratory

Saudi Arabia's Laboratory

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Surge Generator, EMC Test Systems, ESD Simulator, EMI Test Receiver, Electrical Safety Tester, Integrating Sphere, Temperature Chamber, Salt Spray Test, Environmental Test Chamber, LED Test Instruments, CFL Test Instruments, Spectroradiometer, Waterproof Test Equipment, Plug and Switch Testing, AC and DC Power Supply.

Please feel free to contact us if you need any support. Tech Dep: Service@Lisungroup.com, Cell/WhatsApp:+8615317907381 Sales Dep: Sales@Lisungroup.com, Cell/WhatsApp:+8618917996096

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Diagnosing Concussion and TBI With Blood Tests?

Today we will be discussing new literature looking for biomarkers to detect concussions and traumatic brain injuries. We will discuss some of the exciting new findings as well as the current weaknesses in this model.

Please forward us any comments here on our website or go to our Power Health Facebook page http://ift.tt/1LslSK0

References:

1. In vitro models as a platform to investigate traumatic brain injury. Kumaria A. Altern Lab Anim. 2017 Sep;45(4):201-211. Review. PMID: 28994300 [PubMed – in process] Similar articles

2. Cognitive fatigue: an impaired cortical inhibitory replenishment. Touzet C. Brain Inj. 2017 Jul 27:1-7. doi: 10.1080/02699052.2017.1344300. [Epub ahead of print] PMID: 28750174 [PubMed – as supplied by publisher] Similar articles

3. IMPACT Score for Traumatic Brain Injury: Validation of the Prognostic Tool in a Spanish Cohort. Egea-Guerrero JJ, Rodríguez-Rodríguez A, Gordillo-Escobar E, Fernández-Delgado E, Martínez-Roldán Á, Roldán-Reina Á, Durán-Martínez P, de Vega-Ríos E, Freire-Aragón MD, Vilches-Arenas Á, Murillo-Cabezas F, Quintana-Díaz M. J Head Trauma Rehabil. 2017 Feb 10. doi: 10.1097/HTR.0000000000000292. [Epub ahead of print] PMID: 28195955 [PubMed – as supplied by publisher] Similar articles

4. Tau Oligomers Derived from Traumatic Brain Injury Cause Cognitive Impairment and Accelerate Onset of Pathology in Htau Mice. Gerson J, Castillo-Carranza DL, Sengupta U, Bodani R, Prough DS, DeWitt DS, Hawkins BE, Kayed R. J Neurotrauma. 2016 Nov 15;33(22):2034-2043. Epub 2016 Apr 22. PMID: 26729399 [PubMed – in process] Similar articles

5. A literature review of the feasibility of glial fibrillary acidic protein as a biomarker for stroke and traumatic brain injury. Schiff L, Hadker N, Weiser S, Rausch C. Mol Diagn Ther. 2012 Apr 1;16(2):79-92. doi: 10.2165/11631580-000000000-00000. Review. PMID: 22497529 [PubMed – indexed for MEDLINE] Similar articles

6. S100 B: A new concept in neurocritical care. Rezaei O, Pakdaman H, Gharehgozli K, Simani L, Vahedian-Azimi A, Asaadi S, Sahraei Z, Hajiesmaeili M. Iran J Neurol. 2017 Apr 4;16(2):83-89. Review. PMID: 28761630 [PubMed] Free PMC Article Similar articles

7. White matter damage after traumatic brain injury: A role for damage associated molecular patterns. Braun M, Vaibhav K, Saad NM, Fatima S, Vender JR, Baban B, Hoda MN, Dhandapani KM. Biochim Biophys Acta. 2017 May 19. pii: S0925-4439(17)30157-6. doi: 10.1016/j.bbadis.2017.05.020. [Epub ahead of print] Review. PMID: 28533056 [PubMed – as supplied by publisher] Similar articles

8. H-FABP: A new biomarker to differentiate between CT-positive and CT-negative patients with mild traumatic brain injury. Lagerstedt L, Egea-Guerrero JJ, Bustamante A, Montaner J, Rodríguez-Rodríguez A, El Rahal A, Turck N, Quintana M, García-Armengol R, Prica CM, Andereggen E, Rinaldi L, Sarrafzadeh A, Schaller K, Sanchez JC. PLoS One. 2017 Apr 18;12(4):e0175572. doi: 10.1371/journal.pone.0175572. eCollection 2017. PMID: 28419114 [PubMed – indexed for MEDLINE] Free PMC Article Similar articles

9. A review of the clinical utility of serum S100B protein levels in the assessment of traumatic brain injury. Thelin EP, Nelson DW, Bellander BM. Acta Neurochir (Wien). 2017 Feb;159(2):209-225. doi: 10.1007/s00701-016-3046-3. Epub 2016 Dec 12. Review. PMID: 27957604 [PubMed – indexed for MEDLINE] Free PMC Article Similar articles

10. The addition of S100B to guidelines for management of mild head injury is potentially cost saving. Calcagnile O, Anell A, Undén J. BMC Neurol. 2016 Oct 20;16(1):200. PMID: 27765016 [PubMed – indexed for MEDLINE] Free PMC Article Similar articles

11. Elevation of oxidative stress indicators in a pilot study of plasma following traumatic brain injury. Halstrom A, MacDonald E, Neil C, Arendts G, Fatovich D, Fitzgerald M. J Clin Neurosci. 2017 Jan;35:104-108. doi: 10.1016/j.jocn.2016.09.006. Epub 2016 Sep 30. PMID: 27697434 [PubMed – indexed for MEDLINE] Similar articles

12. Kinetic modelling of serum S100b after traumatic brain injury. Ercole A, Thelin EP, Holst A, Bellander BM, Nelson DW. BMC Neurol. 2016 Jun 17;16:93. doi: 10.1186/s12883-016-0614-3. PMID: 27315805 [PubMed – indexed for MEDLINE] Free PMC Article Similar articles

13. Early CSF and Serum S100B Concentrations for Outcome Prediction in Traumatic Brain Injury and Subarachnoid Hemorrhage. Kellermann I, Kleindienst A, Hore N, Buchfelder M, Brandner S. Clin Neurol Neurosurg. 2016 Jun;145:79-83. doi: 10.1016/j.clineuro.2016.04.005. Epub 2016 Apr 8. PMID: 27101088 [PubMed – indexed for MEDLINE] Similar articles

14. Biomarkers in traumatic brain injury: a review. Toman E, Harrisson S, Belli T. J R Army Med Corps. 2016 Apr;162(2):103-8. doi: 10.1136/jramc-2015-000517. Epub 2015 Nov 2. Review. PMID: 26527607 [PubMed – indexed for MEDLINE] Similar articles

15. Ability of Serum Glial Fibrillary Acidic Protein, Ubiquitin C-Terminal Hydrolase-L1, and S100B To Differentiate Normal and Abnormal Head Computed Tomography Findings in Patients with Suspected Mild or Moderate Traumatic Brain Injury. Welch RD, Ayaz SI, Lewis LM, Unden J, Chen JY, Mika VH, Saville B, Tyndall JA, Nash M, Buki A, Barzo P, Hack D, Tortella FC, Schmid K, Hayes RL, Vossough A, Sweriduk ST, Bazarian JJ. J Neurotrauma. 2016 Jan 15;33(2):203-14. doi: 10.1089/neu.2015.4149. Epub 2015 Dec 18. PMID: 26467555 [PubMed – indexed for MEDLINE] Free PMC Article Similar articles

16. A Role of Serum-Based Neuronal and Glial Markers as Potential Predictors for Distinguishing Severity and Related Outcomes in Traumatic Brain Injury. Lee JY, Lee CY, Kim HR, Lee CH, Kim HW, Kim JH. J Korean Neurosurg Soc. 2015 Aug;58(2):93-100. doi: 10.3340/jkns.2015.58.2.93. Epub 2015 Aug 28. PMID: 26361523 [PubMed] Free PMC Article Similar articles

17. S100B inhibition reduces behavioral and pathologic changes in experimental traumatic brain injury. Kabadi SV, Stoica BA, Zimmer DB, Afanador L, Duffy KB, Loane DJ, Faden AI. J Cereb Blood Flow Metab. 2015 Dec;35(12):2010-20. doi: 10.1038/jcbfm.2015.165. Epub 2015 Jul 8. PMID: 26154869 [PubMed – indexed for MEDLINE] Free PMC Article Similar articles

18. Comparative Assessment of the Prognostic Value of Biomarkers in Traumatic Brain Injury Reveals an Independent Role for Serum Levels of Neurofilament Light. Al Nimer F, Thelin E, Nyström H, Dring AM, Svenningsson A, Piehl F, Nelson DW, Bellander BM. PLoS One. 2015 Jul 2;10(7):e0132177. doi: 10.1371/journal.pone.0132177. eCollection 2015. PMID: 26136237 [PubMed – indexed for MEDLINE] Free PMC Article Similar articles

19. Blood Biomarkers in Moderate-To-Severe Traumatic Brain Injury: Potential Utility of a Multi-Marker Approach in Characterizing Outcome. Di Battista AP, Buonora JE, Rhind SG, Hutchison MG, Baker AJ, Rizoli SB, Diaz-Arrastia R, Mueller GP. Front Neurol. 2015 May 26;6:110. doi: 10.3389/fneur.2015.00110. eCollection 2015. PMID: 26074866 [PubMed] Free PMC Article Similar articles

20. S100B and Glial Fibrillary Acidic Protein as Indexes to Monitor Damage Severity in an In Vitro Model of Traumatic Brain Injury. Di Pietro V, Amorini AM, Lazzarino G, Yakoub KM, D’Urso S, Lazzarino G, Belli A. Neurochem Res. 2015 May;40(5):991-9. doi: 10.1007/s11064-015-1554-9. Epub 2015 Apr 22. PMID: 25898931 [PubMed – indexed for MEDLINE] Similar articles

21. In Children and Youth with Mild and Moderate Traumatic Brain Injury, Glial Fibrillary Acidic Protein Out-Performs S100? in Detecting Traumatic Intracranial Lesions on Computed Tomography. Papa L, Mittal MK, Ramirez J, Ramia M, Kirby S, Silvestri S, Giordano P, Weber K, Braga CF, Tan CN, Ameli NJ, Lopez M, Zonfrillo M. J Neurotrauma. 2016 Jan 1;33(1):58-64. doi: 10.1089/neu.2015.3869. Epub 2015 Jun 3. PMID: 25752485 [PubMed – indexed for MEDLINE] Free PMC Article Similar articles

22. Blood-brain barrier dysfunction following traumatic brain injury: correlation of K(trans) (DCE-MRI) and SUVR (99mTc-DTPA SPECT) but not serum S100B. Winter C, Bell C, Whyte T, Cardinal J, Macfarlane D, Rose S. Neurol Res. 2015 Jul;37(7):599-606. doi: 10.1179/1743132815Y.0000000018. Epub 2015 Mar 6. PMID: 25749458 [PubMed – indexed for MEDLINE] Similar articles

23. Biomarkers of traumatic injury are transported from brain to blood via the glymphatic system. Plog BA, Dashnaw ML, Hitomi E, Peng W, Liao Y, Lou N, Deane R, Nedergaard M. J Neurosci. 2015 Jan 14;35(2):518-26. doi: 10.1523/JNEUROSCI.3742-14.2015. PMID: 25589747 [PubMed – indexed for MEDLINE] Free PMC Article Similar articles

24. Immunohistochemical investigation of S100 and NSE in cases of traumatic brain injury and its application for survival time determination. Krohn M, Dreßler J, Bauer M, Schober K, Franke H, Ondruschka B. J Neurotrauma. 2015 Apr 1;32(7):430-40. doi: 10.1089/neu.2014.3524. Epub 2015 Feb 4. PMID: 25211554 [PubMed – indexed for MEDLINE] Similar articles

25. MLC901, a Traditional Chinese Medicine induces neuroprotective and neuroregenerative benefits after traumatic brain injury in rats. Quintard H, Lorivel T, Gandin C, Lazdunski M, Heurteaux C. Neuroscience. 2014 Sep 26;277:72-86. doi: 10.1016/j.neuroscience.2014.06.047. Epub 2014 Jun 30. Erratum in: Neuroscience. 2014 Oct 10;278:265-6. PMID: 24993477 [PubMed – indexed for MEDLINE] Free Article Similar articles

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Diagnosing Concussion and TBI With Blood Tests?

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LM 79 Testing Lab - KC India Test Laboratories LLP

For the LM-79 testing lab, trust KC India's cutting-edge testing laboratory. We provide accurate and comprehensive assessments to ensure your lighting products meet the highest standards of quality.

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LM 79 Testing Lab

Get the intensity of your lights tested at KC India’s LM-79 Testing Lab. The primary five metrics required on the Facts Label of LED Lighting come from testing the flux (light output), electrical power, efficacy, chromaticity, and intensity distribution of the required LED.

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Environmental Testing Lab at KC India

This is where Environmental Testing Labs play a vital role. One such prominent testing facility is the Environmental Testing Lab and LM 79 Testing Lab at KC India Laboratories.

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LM-79 Testing Laboratory

KC India LM-79 is an approved method for testing electrical and photometric measurements of solid-state lighting products. LM-79 contains procedures for performing reproducible measurements of LEDs properties, including: total flux, electrical power, efficacy and chromaticity. LM 79 testing labs, Photometric Testing, Luminaire Testing Lab, LED Tests LM-79 India. 

How LM-79 testing can help assess LED luminary quality and performance?

We all believe in buying quality products. Discovery of LED is boon to our world. LED has replaced all the traditional lightning systems because of its quality, life and performance.  Manufacturers are switching from manufacturing traditional lightning to produce LED lighting. Many of the manufacturers are making unsubstantial claims regarding colour quality, luminous flux (lm), efficacy (lm/w) and general quality. This can Lead to LED degradation. To ensure quality, a series of test has to be performed on LED luminaries for its long term survival. This is served by LM 79 testing Lab method. It is not only the LED but the whole SSL has to qualify all the tests.

LM 79 Testing Laboratories- KcIndia Test Lab

LM 79 Testing  is a method of approval for taking electrical and photometric measurements of Solid-State Lighting products. So KC Lab is providing you accurate LM 79 testing by experts in the very short period of time. LM 79 Test covers total flux light output, electrical power, efficacy, chromaticity, and intensity distribution. The five required metrics on the LED Lighting Facts label come from LM 79 testing Labs results.

What Is LM 79 Testing?

Everyone knows about it, in 2008, the Illuminating Engineering Society published LM 79 Testing Method, Approved Method for the Electrical and Photometric Measurements of SSL Products. LM 79 testing Laboratory capture performance nature of products that feature SSL, including light-emitting diodes LEDs.

KCIndia NABL (TC-5844) ISO 9001:2015 Accredited LM 79 Testing Laboratory Can do LM-79 Testing on High bay LED lights Testing as per standard Test to be conducted under LM 79:-

1.Measurement of Total Luminous Flux & Luminous Efficacy

2.Color Characteristics (Chromaticity Coordinates, Correlated Color Temperature & Color Rendering Index)

3.Light Intensity Distribution

Colorimetric Parameters:

1.Chromaticity coordinates: (Chroma x / Chroma y / Chroma u(u’) / Chroma v / Chroma v’)

2.Correlated Color Temperature (CCT)

3.Duv Value

4.Color Ratio

5.Peak Wavelength (nm)

6.Half Bandwidth (nm)

7.Dominant Wavelength (nm)

8.Color Purity

9.Color Rendering Index (CRI – Ra)

Photometric Parameters:

1.Total Luminous Flux (Lumens)

2.Luminous Efficacy (Lumens/Watt)

3.Radiant Power (Watts)

4.Electrical Results:

5.Input Power (Watts)

6.Input Voltage (Volts )

7.Input Current (Amps)

8.Power Factor

9.Input Frequency (Hz)

Additional Parameters:

1.Stabilization Time (Light and Power) = 60 minutes

2.Test Geometry Configuration = 4π

3.Spectroradiometer = (Lisun LMS-9000A Plus)

4.Ambient Temperature = 25.0°C

IES LM-79 "Electrical and Photometric Measurements of Solid-State Lighting Products"

Approved method describing procedures and precautions in performing reproducible measurements of LEDs:

1.Total luminous flux

2.Electrical powers

3.Luminous Intensity distribution

4.Efficacy (lm/watt)

5.Chromaticity

LM-79 Scope

Applies to LED-based products incorporating control electronics and heat sinks, that is, those devices that require only AC mains power or a DC voltage power supply to operate.

Absolute Photometry Basis

LM-79 requires complete luminaire testing

Traditionally, photometric evaluation of lighting products is based on separate tests for lamps and luminaires ("relative")

For SSL products, LED lamps typically cannot be separated from their luminaire because of heat effects ("absolute")

Relative vs. Absolute Photometry

Relative testing – Lamps of interest and luminaire (with reference lamp) are measured separately. Then the actual light distribution and intensity of the complete luminaire of interest is derived by normalization of the test data

Absolute testing – The actual light distribution and intensity of the luminaire of interest is measured directly from the complete luminaire.

Why KC India Test Lab is Best for  LM 79 Testing Lab?

LM 79 testing lab provides a snapshot of performance under specified operating conditions at some point in the life of a product, usually, at the beginning of the operation, these are referred to as initial measurements. It never addresses permanent ratings, changing performance over time e.g., lumen maintenance, or LED case temperature.

The LM 79 methods are really applicable to integrated LED products, such as luminaries and replacement lamps. It is not applicable to LED packages, modules, or arrays

LM 79 is the method for testing electrical and photometric measurements of SSL products.

LM 79 contains procedures for performing reproducible measurements of LEDs properties, including total flux, electrical power, efficacy, and chromaticity.

The scope of LM 79 Testing Laboratories applied to LED products that incorporate control electronics and heat sinks. This covers complete LED luminaries and integrated LED sources. It does not include bare LED chips or LED-based products without a light source.

LM 79 Test Labs – LM 79 Testing Laboratories – KC  India

If you have any query regarding LM-79 Testing and Certification. Kindly send us your testing requirements with the product technical details to submit you our testing charges. We are waiting for your earliest reply

Get introduced to the best place which is KC India for LM 79Testing Labs where you can have the best result for LM 79 Testing. Call on 9599880268 for LM 79 Testing laboratories.

LM 79 Testing Lab | LM 79 Testing Labs | LM 79 Testing Laboratory

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LM-79 Testing Laboratory in India

LM 79 Test Labs – LM 79 Testing Laboratories – KC  India

Get introduced to the best place which is KC India for LM 79 Testing Labs where you can have the best result for LM 79 Testing. Call on 9599880268 for LM 79 Testing laboratories.

KC India Ghaziabad (UP) is a accredited laboratory through NABL under photometry testing providing LM-79 Testing. It has a scope to test Solid state lightning luminaries for total luminous flux, efficacy, CCT, CRI, color coordinates and LID.

Why to go for LM-79 Testing?

If You are a manufacturer or vendor and want to sell your product in the market. Then you must be needed a test report of your product which will give all the parameters electrical and photometric measurement issued by an NABL accredited laboratory KC India LM 79 testing will give you a chance to improve your product by amendment in it if required. So, Testing LED luminaries are a necessary task to be performed in this competitive world.

LM 79 Testing Lab | LM 79 Testing Labs | LM 79 Testing Laboratory

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LM 79 Testing Lab In Delhi NCR

What are the limitations of LM-79 Testing?

LM-79 Testing specifies the parameters of individual products and the test data obtained cannot be used to evaluate similar products and carry out lighting calculations.LM-79 Testing does not specify any sampling size. Not specifying the number of samples to be tested leads to manufacturers providing only one sample instead of providing more, thus increasing the vulnerability of lesser quality products.  

KC India Test Laboratories is a state of art testing facility in the Electrical and Electronics discipline, promoted by KC India, located in India.  KC India has a testing facility embedded with Modern Technology for Luminaries Testing, Electrical Testing, LM 79 Testing, IP Testing  IT Testing.

KC India follows internationally accepted practice and protocols for the compliance of Indian and international standards with accurate, prompt and reliable test results. KC India complies With ISO  International Standard For Testing Laboratories, Accredited By NABL (National Accreditation Board For Testing And Calibration Laboratories) and is recognized By BIS – Bureau Of Indian Standards Under Notified Categories Of Electronic Products Under The “Electronics And IT Goods” (Requirements For Compulsory Registration) Order, Of Government Of India, Department Of Electronics And IT.

As the development of LED technology continues to grow and diversify, the need for consistent and standardized testing procedures for LED has become more prevalent than ever. KC India is NABL Accredited laboratory for the  LM 79 Testing, Luminaire Testing .

KC India Test Laboratories LLP has made strides to stay current with the new testing standard LM-79 Testing and Luminaire Testingset forth by the IESNA (Illuminating Engineering Society of North America). In addition, “KCIndia” testing is now a priority when testing our LED light systems for more reliable results.

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What are the limitations of LM-79 Testing?

LM-79 Testing specifies the parameters of individual products and the test data obtained cannot be used to evaluate similar products and carry out lighting calculations.LM-79 Testing does not specify any sampling size. Not specifying the number of samples to be tested leads to manufacturers providing only one sample instead of providing more, thus increasing the vulnerability of lesser quality products.  

KC India Test Laboratories is a state of art testing facility in the Electrical and Electronics discipline, promoted by KC India, located in India.  KC India has a testing facility embedded with Modern Technology for Luminaries Testing, Electrical Testing, LM 79 Testing, IP Testing  IT Testing.

KC India follows internationally accepted practice and protocols for the compliance of Indian and international standards with accurate, prompt and reliable test results. KC India complies With ISO  International Standard For Testing Laboratories, Accredited By NABL (National Accreditation Board For Testing And Calibration Laboratories) and is recognized By BIS – Bureau Of Indian Standards Under Notified Categories Of Electronic Products Under The “Electronics And IT Goods” (Requirements For Compulsory Registration) Order, Of Government Of India, Department Of Electronics And IT.

As the development of LED technology continues to grow and diversify, the need for consistent and standardized testing procedures for LED has become more prevalent than ever. KC India is NABL Accredited laboratory for the  LM 79 Testing, Luminaire Testing .

KC India Test Laboratories LLP has made strides to stay current with the new testing standard LM-79 Testing and Luminaire Testingset forth by the IESNA (Illuminating Engineering Society of North America). In addition, “KCIndia” testing is now a priority when testing our LED light systems for more reliable results.

LM 79 Testing Lab | LM 79 Testing Labs | LM 79 Testing Laboratory | Luminaire Testing Lab | Luminaire Testing Labs | Luminaire Testing Laboratory

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Can we use LMS-6000 portable CCD spectroradiometer to test luminous flux lumen?

With the rapid development of LED lighting market, the competition becomes more and more intense. So more and more LED lighting manufacturers began to focus on the quality of their products in order to gain a greater share in the market. Thus, LED lighting test instruments became the indispensable equipment. On the LED test equipment, there are goniophotometer, integrating sphere, spectroradiometer, LED driver power tester, EMI & EMC test equipment, and IP waterproof, dustproof environmental test chamber and so on.

And goniophotometer, integrating sphere and spectroradiometer is the most common and also basic equipment, mainly used to test the LED luminaires photometric, colorimetric and electrical performance, such as lumen (luminous flux), luminous intensity distribution, luminous efficiency, correlated color temperature, color rendering index, voltage, power and other basic parameters. However, due to the price of these equipment is not cheap and it requires a certain size of the laboratory, many small and medium-sized manufacturers or companies that started LED industry turned to seek portable test equipment, such as LMS-6000 Portable CCD Spectroradiometer. There are various kinds of portable spectroradiometers on the market, with elegant appearance and built-in high resolution LCD display, and even can be as smart as the phone. But is it really capable of testing lumens?

Many portable spectroradiometers claim to be able to test the lumen value of LED lamps. However, according to the standard IES LM-79-08 Electrical and Photometric Measurements of Solid-State Lighting Products, in Section 9.0, it states that the total luminous flux (lumen) of the SSL product should be measured using an integrating sphere system or goniophotometer. As for which method to use, depending on the size and shape of SSL products, and whether needs to measure other parameters such as color, luminous intensity distribution and so on. In general, the integrating sphere system is suitable for testing integrated LED lamps and relatively small LED luminaires (refer to Section 9.1.2 about the method for measuring the size of SSL products measured with the specified size of the integrating sphere) total luminous flux and colorimetry. The integrating sphere system has the advantage of fast measurement and no darkroom, and the result of the total luminous flux is a relative value because the final measurement result is calculated by comparison with the reference standard. Goniophotometer is usually used to measure luminous intensity distribution, and then resulting total luminous flux, thus it is an absolute value, and the measurement results are more accurate. It can measure the total luminous flux of not only small SSL products but also relatively large (as opposed to traditional fluorescent lighting) SSL products. Goniophotometer needs to be installed in the usual temperature control of the darkroom, to avoid the measured light source to absorb heat and other stray lights’ reflection to affect the measurement results.

Therefore, theoretically using a LMS-6000 Portable CCD Spectroradiometer to test lumen is not feasible, because the lack of the corresponding test environment, the measurement results will be a great error. In order to fulfill customers’ requirement of testing luminous flux (lumens) with limited budget, Lisun developed an economical compact integrating sphere spectroradiometer system, to provide customers with the best solution. The LPCE-3 CCD Spectroradiometer Integrating Sphere Compact System integrates the equipment and cabinet into ALL-IN-ONE, so there’s no need to install, and it is more convenient and easy to operate. Also it saves a lot of space. The sphere can be dismantled into two parts, which is easier for transportation, especially at offices or laboratories with smaller door sizes. In addition, this integrating sphere comes with a removable test holder base inside, and it can withstand 20kg weight. Also, it can install and replace different light fixtures for measurement according to different types of light sources, which is very simple and convenient, please refer to the following figures.

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Spectroradiometer, Integrating Sphere, LED Test Instruments, CFL Test Instruments, Photometer and Colorimeter, EMC & EMI Testing, Surge Generator, Electrical Safety Testing, Environmental Test Chamber, Waterproof Test , Dustproof Test Chamber, High and Low temperature Humidity Chamber, Plug and Switch Testing, AC and DC Power Supply.

Please feel free to contact us if you need any support. Tech Dep: Service@Lisungroup.com, Cell/WhatsApp:+8615317907381 Sales Dep: Sales@Lisungroup.com, Cell/WhatsApp:+8618917996096

[lisungr]

How to choose LISUN products for Saudi Arabia’s latest standard SASO2902

Recently Saudi Arabia released new LED standard SASO 2902 for energy efficiency, functionality and labeling requirements for Lighting products. We have got the SASO 2902 in 2017 which is draft and already produce some instruments for some of the Saudi Lab. Such as below products:

1. LPCE-2(9000B) High Precision Spectroradiometer Integrating Sphere System. It can test EEI, Energy Efficiency Class, SDCM, CRI, CCT, Lumen and so on. 2. LSRF-3 Lamp Start, Run-up time and Flicker Tester, which meet Table 13 (on page 27) in SASO2902. The LSRF-3 can be used with LISUN LPCE-2 High Precision Spectroradiometer Integrating Sphere System. 3. LSG-5000 LM-79 Moving Detector Goniophotometer. This test system can make the measurement of Luminous Intensity Distribution, Luminaries Efficiency, Luminance Distribution, Efficient Luminescence Angle, UGR and etc. The test result can be exported as CIE, IES, LDT and other format files. 4. SY2036 Aging and Life Test Rack which is special designed for Saudi Arab to meet SASO2902 in clause 5.2. 5. LEDLM-80PL LED Lumen maintenence and endurance test system, which meet SASO2902 in clause 5.2. 6. WT2080 LED Driver Test System

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Spectroradiometer, Integrating Sphere, LED Test Instruments, CFL Test Instruments, Photometer and Colorimeter, EMC & EMI Testing, Surge Generator, Electrical Safety Testing, Environmental Test Chamber,  Waterproof Test , Dustproof Test Chamber, High and Low temperature Humidity Chamber, Plug and Switch Testing, AC and DC Power Supply.

Please feel free to contact us if you need any support. Tech Dep: Service@Lisungroup.com, Cell/WhatsApp: +8615317907381 Sales Dep: Sales@Lisungroup.com, Cell/WhatsApp: +8618917996096

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How to test LED fixture for startup, rise time and flicker

In recent years, the LED market has been expanding, which is attributed to the unique characteristics of LED solid-state lighting products, such as good luminous efficiency, long service life and high reliability .Therefore, LED solid-state lighting products are increasingly favored by the market and consumers. But at the same time, because of the fast response speed of LED and the lack of thermal inertia and afterglow effect of traditional lamps, the LED is deeply affected by the current fluctuation, which directly affects the output of light flux.

The flicker of light source is the external reflection of the change of light flux. Therefore, the flicker of LED lighting products has attracted people's attention. In this regard, on December 14, 2012, the European Union (EU) officially issued regulation NO. 1194/2012 in its official gazette, "implementation details of directive NO. 2009/125/EC of the European parliament and the European council on ecological design requirements for directional lights, LED lights and related equipment". According to the European commission (EC) regulation NO244/2009 issued on March 18, 2009,the European parliament and the European council directive 2005/32/EC on the implementation of ecological design requirements for nondirectional household lamps, so far the eu has formed a complete mandatory ecological design requirements for LED lamps. Start-up time and rise time, as two indexes of functional requirements, are paid more and more attention by manufacturers in the industry.

We just talked about the flicker effect of LED lighting, but most of people don't know what it means. The essence of light source flicker is the fluctuation of light flux. Driven by ac or pulse dc, the light flux, illuminance or brightness of the light source change correspondingly with the periodic change of current amplitude. Human eyes and human brains react subjectively to this change. Usually, Flicker can be divided into Visible Flicker and Invisible Flicker according to people's feelings. When the frequency is more than 100Hz, the human eye cannot feel the flicker phenomenon, but it will still cause eye fatigue, headache, etc. This is the yan shan effect, which is generally believed to exist within 500Hz. For this purpose, ENERGY STAR lamps V2.1 draft 4 specifies the conditions for flickering used for all lamps and lanterns in the dimming performance requirements.

The allowed range of light source flicker is:

1. The frequency is not less than 120Hz; 2. F1<0.001 X frequency within the frequency range of 120hz-800hz 3. There is no requirement for F1 when the frequency is greater than 800Hz; 4. If the frequency is uncertain, PF<30%; In addition, the output frequency of compact fluorescent light should be 20-30khz, or greater than 40KHz.

The essence of light source flicker is the instability of light flux. When detecting the fluctuation of light source with time, the change curve of brightness can be tested, and the change curve of light flux or illumination can be tested under the same conditions. ENERGY STAR (V1.0) specifies the measurement requirements of flicker:

1. Power supply and measuring instruments shall meet LM-79-08 requirements; 2. Multi-channel oscilloscope with storage function, and attenuation probe can be added when necessary. The sampling rate is greater than 2kHz and the sampling time is greater than 100ms. 3. Photometric probe, V(in)correction, and the corresponding time should meet the requirements; 4. For absolute photometry :to measure the absolute value ,a sphere of integration Is required; For relative photometry: ensure that the detector is able to measure relative light output and only receives light from the light to be measured. 5. Before measurement, the compact fluorescent lamp shall be aged for 100 hours, and it shall be preheated before measurement. LED lights do not need to be old, the ambient temperature is 25+/-5 degrees.

In order to meet the EU Erp energy efficiency index requirements, as well as IEC60969 S self-ballasts for general lighting safety requirements and energy star requirements, LISUN developed LSRF-3 lamps start, rise time and flicker test system, in order to meet the LED lamps start time, rise time instrument strobe flash test requirements.

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Spectroradiometer, Integrating Sphere, LED Test Instruments, CFL Test Instruments, Photometer and Colorimeter, EMC & EMI Testing, Surge Generator, Electrical Safety Testing, Environmental Test Chamber, IP Waterproof Test Equipment, Dustproof Test Chamber, High and Low temperature Humidity Chamber, Plug and Switch Testing, AC and DC Power Supply.

Please feel free to contact us if you need any support. Tech Dep: Service@Lisungroup.com, Cell/WhatsApp: +8615317907381 Sales Dep: Sales@Lisungroup.com, Cell/WhatsApp: +8618917996096