lm 79 testing labs in bangalore

LM 79 Testing Laboratories – ITC India LED Test Laboratories

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LM 79 Testing Lab, LM 79 Test Labs, LM 79 Test Laboratories, LM 79 Testing

Get introduced with the best place which is ITC India for LM-79 Testing Labs where you can have the best result for LM-79 Testing. Call on 0826440109108196980555 for LM-79 Testing laboratories

LM 79 Testing

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. ITC India is a NABL and BIS Accredited testing for LM-79

ITC India has made strides to stay current with the new testing standard LM 79 set forth by the Illuminating Engineering Society of North America. In addition, ITC India testing is now a priority when testing our LED light systems for more reliable results.

LM 79 Testing Laboratories

LM-79 is a method approved for taking electrical and photometric measurements of SSL products. So ITC India Pvt Ltd. is providing you accurate LM-79 testing by experts in the very short period of time. LM-79 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 Laboratories results.

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

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

  • Total luminous flux
  • Electrical powers
  • Luminous Intensity distribution
  • Efficacy (lm/watt)
  • Chromaticity

What Is LM-79 Testing?

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

 LM 79 Testing 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.

Who can perform testing?

LM 79 testing should be performed by ITC India Laboratory for the category of the product tested. Only reports from recognized laboratories are relevant. This standard is used for the Department Of Energy ENERGY STAR program qualification and lighting facts advocate program. All ITCIndia product testing is performed according to LM 79  in a NABL and BIS recognized laboratory and reports are available upon request.

Why We Use LM-79 Testing Lab?

The 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 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 lighting products.
  • LM 79 contains procedures for performing reproducible measurements of LED 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.

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 solid-state lighting products, LED lamps typically cannot be separated from their luminaire because of heat effects absolute

What Is Important Aspect Of LM-79 Testing?

LM 79 testing requires complete luminaries testing on an absolute photometric basis. Typically lighting products are evaluated on a relative photometric basis, where separate tests are done for lamps luminaries. However, for SSL products the LED lamps typically cannot be separated from their luminaries. The absolute photometric testing required measures the light distribution and light intensity of the complete luminaries.

In recent times, the term LM 79 Testing laboratories have become part of our lighting lexicon and have been treated in some cases as lighting program all its own. While many lighting programs such as DLC and Energy Star reference LM 79 procedures, it is not in and of itself a lighting program with specified requirements and pass/ fails criteria.

However, the term LM 79 Testing Lab has come to generally be recognized as two distinct tests a candela distribution test with an IES file, and an integrating sphere test for a standard color CCT, CRI, Duv, chromaticity coordinates. Nevertheless, any time LM 79 is mentioned in reference to the desired testing, our staff will verify exactly what the customer requires since many measurement options are discussed in the official document.

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 are measured directly from the complete luminaire.

Why choose ITC?

We, ITC India providing service to the client from the last 8 years with 100 % satisfied clients. Being NABL accredited, it is equipped with highly accurate machines, experienced and competent engineers. Customer satisfaction is the quality policy of the company. So, we are here to serve the clients in their testing requirements.

  1. Reasonable Price: Very competitive price, being one of the best on the market. Moreover, this price has no hidden fees.
  1. The quality of our support is unmatched: We take to support one step further by tailoring our replies to suit your knowledge, expectations, and personality.
  1. We’re passionate about what we do: What sets us apart from the competition is that we’re passionate about the services we provide and quality of support.
  1. Proven track record: We’ve gained a reputation as a reliable and honest company in the last 7 years with most of our customers coming from reference.

If Your Buyers Demanding for Street Light Testing – Contact Now!

Kindly send us the following Details, So that we can provide you with a quotation for the same:

  1. Product Name, Technical Specifications, and Brochure
  2. Product Images
  3. Total Number of Samples Required: 2

Wish this blog post will help. If you have any other questions, please feel free to contact us. ITCIndia team looking forward to working with you and get better together!

Mr. Puneet Sharma | Call: 08196980555 E-mail: ITCIndiaOne@Gmail.Com

Get Instant Quotations, Fill the Enquiry form:

Are you Looking for Street Light Testing Laboratory in Your Area?

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LED Street Light Testing Laboratory ITC India

Are you Looking for Street Light Testing Laboratory in Your Area? then you’re at the right place.On this website  we are not just going to pitch you to hire us for our specialized Street Light Testing  services but also going to provide a lot of valuable information on what, why and how to do Street Light Testing.

If you are looking for Street Light Testing Laboratory for LED Lighting In your Area, ITCIndia One of the Best Electrical Safety testing Laboratory Approved from NABL. ITC India Providing Street Light Testing for Mumbai, Chennai, Ahmedabad, New Delhi, Pune, Kolkata, Bangalore, Hyderabad, Surat, Visakhapatnam, Panchkula, Haryana, Chandigarh, Mohali, Punjab, India and all over the World.

ITCIndia “Institute of Testing and Certification India Pvt. Ltd” are a leading testing lab having a NABL accreditation under ELECTRICAL, ELECTRONICS and PHOTOMETRY testing with certificate no. T-3509, T-3570 and T-1811. ITCIndia Lab is following the procedure as required by International Standard IEC 17025 and is already certified for ISO/IEC 17025.

European Electrical Safety Testing Standards for Street Lights:

Electrical Safety testing services delivered by I.T.C.India are being provided to ensure the safest and reliable product to be delivered at end user by maintaining all the safety norms as per IEC/EN/IS standards.

More products / standards are mentioned below for reference only. the current versions of applicable standard shall be checked prior to testing.

S.no Product Type Standards
1 Electric Signs, Underwater Luminaires IEC/EN 60598-2-1 & IEC/EN 60598-1
2 Dimmers/ Controllers IEC/EN 61058-1/ IEC/EN 61347-2-11 & IEC/EN 61347-1
3 Seasonal/Holiday Decorative Products IEC/EN 60598-2-20 & IEC/EN 60598-1
4 Fluorescent Lamp Ballasts IEC/EN 61347-2-3, IEC/EN 61347-1, IEC/EN 61347-2-8 & IEC/EN 61347-1
5 Photoelectric Switches for Lighting IEC/EN 60669-2-1 & IEC/EN 60669-1
6 Fluorescent Lamp Ballasts IEC/EN 61347-2-3, IEC/EN 61347-1, IEC/EN 61347-2-8 & IEC/EN 61347-1
7 HID Lamp Ballasts IEC/EN 61347-2-9, IEC/EN 61347-1, IEC/EN 61347-2-12 & IEC/EN 61347-1
8 Portable Luminaires IEC/EN 60598-2-4 & IEC/EN 60598-1
9 Dimmers/ Controllers IEC/EN 61058-1/ IEC/EN 61347-2-11 & IEC/EN 61347-1
10 Solid-State Dimming Controls IEC/EN 61058-1
11 Track Lighting Systems IEC/EN 60570
12 Fixed Luminaires IEC/EN 60598-2-1 & IEC/EN 60598-1
13 LED Drivers IEC/EN 61347-2-13 & IEC/EN 61347-1
14 Nightlights IEC/EN 60598-2-12 & IEC/EN 60598-1
15 Stage and Studio Luminaires IEC/EN 60598-2-17 & IEC/EN 60598-1
16 Self-Ballasted Lamps/Lamp Adapters IEC/EN 60968
17 Neon Transformers and Power Supplies IEC/EN 61347-2-10 & IEC/EN 61347-1
18 LED Equipment for Use In Lighting IEC/EN 62031
19 Low Voltage Landscape Lighting IEC/EN 60598-2-1, IEC/EN 60598-1, IEC/EN 60598-2-7 & IEC/EN 60598-1
20 Low-Voltage Lighting Systems IEC/EN 60598-1 & IEC/EN 60598-2
21 Flexible Lighting Products IEC/EN 60598-2-20 & IEC/EN 60598-1
22 Photobiological Safety Lamp and Lamps Systems IEC/EN 62471

Photometric Performance Testing for Luminaires:

ITCIndia offers the most comprehensive Luminaires performance testing suite in the Industry today.Photometric Performance Testing for Luminaires products, no one can you covered like ITC India. With Luminaires performance testing abilities that encompass a wide variety of industries, ITCIndia has the capabilities and expertise to meet your testing Requirements. 

S.no Product Type Standards
1 Electrical and Photometric Testing of Solid-State Lighting Devices IESNA LM-79:2008
2 Luminaire Photometry Testing for IEC Files
3 Compact Fluorescent Lamps IESNA LM-66:2000
4 European Performance Specification EN 12368, EN 12966
5 Incandescent Lamps IESNA LM-45:2000
6 Incandescent Filament Lamps IESNA LM-49:2001
7 Spectroradiometric Measurements IESNA LM-58:1994
8 Lumen Maintenance of LED Light Sources IESNA LM-80:2008
9 ENERGY STAR® Testing of Compact Fluorescent (CFL) Lamps
10 ENERGY STAR® Testing of Integral LED Lamps

Environmental and Mechanical Testing:

ITCIndia offers full Environmental and Mechanical Testing and certification services for LED Lighting luminaires to IEC 60598-2-3 Impact IK ratings are defined as IKXX, where “XX” is a number from 00 to 10 indicating the degrees of protection provided by electrical enclosures including luminaires against external mechanical impacts. The Impact IK rating scale identifies the ability of an enclosure to resist impact energy levels measured in joules. IEC 62262 specifies how the enclosure must be mounted for IK Impact and IP Testing, the atmospheric conditions required, the quantity and distribution of the test impacts and the impact hammer to be used for each level of Impact IK rating.

S.no Product Type Standards
1 Ingress Protection Testing (IP Rating) IEC 60529
2 Drop/Impact Testing As Per Client Requirements
3 Mechanical Shock Testing As Per Client Requirements
4 Vibration Testing As Per Client Requirements
5 Dust Testing As Per Client Requirements
6 Moisture Testing As Per Client Requirements
7 Moisture Testing As Per Client Requirements
8 Thermal Cycling/Thermal Shock As Per Client Requirements
9 Humidity Testing As Per Client Requirements
10 Abrasion Testing As Per Client Requirements

EMC Testing For Luminaires:

Electrically powered Luminaires products are more required to be tested for EMC per National and international requirements, and at ITC India can help you to do EMC Testing For Luminaires. EMC Testing For Luminaires demonstrates that your Luminaires products electronic emissions will not affect the normal operation of, nor be affected by, other products within the same environment. ITCIndia One of the Best International EMC testing facilities provider, ITC Engineers perform EMC/EMI Testing For your LED Lights.

S.no Product Type Standards
1 Street Lights, Tube Lights, Down Lights, Lamps, Underwater Luminaires, Seasonal/Holiday Decorative Lights, Fluorescent Lamp, Photoelectric Switches for Lighting, HID Lamp, Portable Luminaires, Track Lighting Systems, Fixed Luminaires, Nightlights, Stage and Studio Luminaires, Self-Ballasted Lamps, LED Equipment for Use In Lighting, Landscape Lighting, Low-Voltage Lighting Systems, Flexible Lighting Products, Photobiological Safety Lamp and Lamps Systems IEC/EN 61547, IEC/EN 61000-3-2, IEC/EN 61000-3-3, IEC/EN 61000-4-2, IEC/EN 61000-4-4, IEC/EN 61000-4-5, IEC/EN 61000-4-11,

Why to choose ITC?

We, ITC India providing service to the client from the last 8 years with 100 % satisfied clients. Being NABL accredited, it is equipped with highly accurate machines, experienced and competent engineers. Customer satisfaction is the quality policy of the company. So, we are here to serve the clients in their testing requirements.

  1. Reasonable Price: Very competitive price, being one of the best on the market. Moreover, this price has no hidden fees.
  1. The quality of our support is unmatched: We take support one step further by tailoring our replies to suit your knowledge, expectations and personality.
  1. We’re passionate about what we do: What sets us apart from the competition is that we’re passionate about the services we provide and quality of support.
  1. Proven track record: We’ve gained a reputation as a reliable and honest company in the last 7 years with most of our customers coming from reference.

If Your Buyers Demanding for Street Light Testing – Contact Now!

Kindly send us the following Details, So that we can provide you quotation for the same:

  1. Product Name, Technical Specifications and Brochure
  2. Product Images
  3. Total Number of samples Required: 2

Wish this blog post will be help. If you have any other questions, please feel free to contact us. ITCIndia team looking forward work with you and get better together!

Mr. Puneet Sharma | Call: 08196980555 | E-mail: ITCIndiaOne@Gmail.Com

Get Instant Quotations, Fill the Enquiry form:

What are the limitations of LM-79?

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What are the limitations of LM-79?

As we all know about the strength of LM 79. Everything has its pros and cons. Let us have a look on the drawbacks of LM 79.

  • LM 79 depicts the parameters of the individual products. So the obtained Parameters cannot be used to access alike products.
  • Other limitation is the sample size. It does not state any sample size. So, the manufacturer provides only one sample instead of supplying more. This thus increases the vulnerability of lesser quality products.
  • This can be used only to determine complete luminary instead of LED used ( as based on absolute photometry) , which can produce different results due to quality of accessories used like glass, thermal effect, lenses etc.

If you’re Buyers Demanding for LM-79 Testing– Contact Now!

Wish this blog post will be help. If you have any other questions, please feel free to contact us. ITCIndia team looking forward work with you and get better together!

Mr. Puneet Sharma | Call: 08196980555 | E-mail: ITCIndiaOne@Gmail.Com

Get Instant Quotations, Fill the Enquiry form:

Photometric Testing Experts

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Searches related to Photometric Testing Experts, What is Photometric Testing, Photometric Test Procedure, Photometric Test Report, Photometric Testing India, LM-79 Testing Experts, Photometric Testing labs, LED Testing Experts, Photometric Testing for LED Lighting

If you are looking for Photometric Testing Laboratory for LED Lighting In your Area, ITCIndia Electrical Safety testing Laboratory Approved from NABL. ITC India one of the best Photometric Testing Laboratory in India, Mumbai, Chennai, Ahmedabad, New Delhi, Pune, Kolkata, Bangalore, Hyderabad, Surat, Visakhapatnam.

ITCIndia “Institute of Testing and Certification India Pvt. Ltd” are a leading testing lab having a NABL accreditation under ELECTRICAL, ELECTRONICS and PHOTOMETRY testing with certificate no. T-3509, T-3570 and T-1811. ITCIndia Lab is following the procedure as required by International Standard IEC 17025 and is already certified for ISO/IEC 17025.

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. ITCIndia is NABL Accredited laboratory for Photometric Testing for LED Lighting, LM 79 Testing.

Institute of Testing and Certification India Pvt. Ltd has made strides to stay current with the new testing standard LM-79 set forth by the IESNA (Illuminating Engineering Society of North America). In addition, “ITCIndia” testing is now a priority when testing our LED light systems for more reliable results.

ITCIndia Lab has made strides to stay current with the new testing standard LM-79 set forth by the IEC/EN 60598. In addition, ITC INDIA testing is now a priority when testing our LED light systems for more reliable results. Fixtures tested by LM-79 standards will now feature a Lighting Facts label provided through the program created by the IEC/EN.

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

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

  • Total luminous flux
  • Electrical powers
  • Luminous Intensity distribution
  • Efficacy (lm/watt)
  • Chromaticity

How To do Photometric Testing?

Check Our Photometric Testing Scope

Absolute Photometry Basis

  1. LM-79 requires complete luminaire testing
  2. Traditionally, photometric evaluation of lighting products is based on separate tests for lamps and luminaires
  3. For SSL products, LED lamps typically cannot be separated from their luminaire because of heat effects

Relative vs. Absolute Photometry

Relative testing – Lamps of interest and luminaire 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.

For your better understanding, we are going to show you the Photometric Test report of latest LED in the following:

Learn more about this Photometric test >

If you’re Buyers Demanding for Photometric Testing– Contact Now!

Wish this blog post will be help. If you have any other questions, please feel free to contact us. ITCIndia team looking forward work with you and get better together!

Mr. Puneet Sharma | Call: 08196980555 | E-mail: ITCIndiaOne@Gmail.Com

Get Instant Quotations, Fill the Enquiry form:

LM-79 testing for Tube Light | lm 79 Testing labs in India

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LM-79 testing for Tube Light | lm 79 Testing labs in India

LM-79 testing for Tube Light, lm-79 test procedure, lm 79 test report, lm 79 Testing labs in India

If you are searching for LM-79 Testing Laboratory for your Tube Light Testing, If you’re Buyers Demanding for LM-79 Testing Report. ITCIndia Can Help You!  ITC India is One of The Best NABL Accredited Electrical Safety testing Laboratory In India. ITC India offering LM 79 testing services in all over India.

ITC India NABL accreditation Electrical Safety Testing laboratory under ELECTRICAL, ELECTRONICS and PHOTOMETRY Testing with certificate no. T-3509 , T-3570 & T-1811. ITC India Lab is fully equipped with high accuracy Measuring Instruments and trained personal to provide testing and certification Services for Electrical and Electronic equipment.

ITC India following the procedure as required by International Standard IEC 17025 and is already certified for ISO/IEC 17025.

The Lm-79 Testing for Tube Light to be conducted is as follows:-

PRODUCT Testing as per standard
Tube Light Testing 
Test to be conducted under LM 79:
a. Measurement of Total Luminous Flux
b. Color Characteristics (Chromaticity Coordinates, Correlated Color Temperature & Color Rendering Index)
c. Light Intensity Distribution Testing
IEC 60598-2-1
Electrical Fast Transient Test as per IEC 61000-4-4
Voltage Dips & Drops Test asper IEC 61000-4-11
Flicker Test as per IEC 61000-3-3

 

Please give us the following information to quote you:

  1. Product Photographs
  2. Technical specification of Product

Popular Search about LM-79 Testing:-

  1. How to do LM-79 Testing?
  2. LM-79 Testing | LM-79 Test Approved Methods
  3. LM-79 Testing Report for LED lights, LM-79 Test Requirements & Procedure, lm 79 certificate
  4. LM-79 Testing for LED DownLight | LED Down Light Testing | LM 79 testing labs in India
  5. LED Luminaires Testing Services
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ITC India has around 5000 clients from LED lighting division from All over India. If you want to Get LM 79 Test Report in a week.  – Contact Now!

Mr. Puneet Sharma | Call: 08196980555 | Email: ItcIndiaOne@Gmail.Com

Get Instant Quotations for Lm-79 Testing, Please Fill the Enquiry form below:

LM 79 Testing lab in India | laboratory For LED Testing ITCIndia

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LM 79 Testing at ITC India Pvt Ltd | LM 79 Testing laboratory in India

If you are looking for LM-79 Testing Laboratory in India, ITCIndia Can Do. ITC India NABL Accredited Electrical Safety testing Laboratory Providing LM-79 Testing.

ITC India have NABL accreditation Testing laboratory under ELECTRICAL , ELECTRONICS and  PHOTOMETRY testing with certificate no. T-3509 , T-3570 & T-1811. ITC India Testing Laboratory is fully equipped with high accuracy Measuring Instruments and  trained personal to provide testing and certification Services for Electrical and  Electronic equipments. ITC India Laboratory is following the procedure as required by International Standard IEC 17025 and is already certified for ISO/IEC 17025. ITC India offering this LM 79 testing services in all over India like , Mumbai , Chennai ,Ahmedabad , New Delhi, Pune, Banglore, Kolkata

ITC India Pvt Ltd. has recently installed the  Goniophotometers LED/SSL at its Mohali laboratory. This is in addition to integrated sphere in the field of photometry testing of lamps & luminaires. With this additional testing facility, ITC India is able to perform complete photometry testing on all kinds of lamps and luminaires including LED lamps, LED Street Light, LED Downlights, outdoor lighting, LED floodlight, LED Tube lights, LED spotlight , led light strips,  led light bars, led light fixtures, and luminaires.

ITC India Laboratory  is totally equipped with high accuracy testing instruments  like spectrometer , integrating sphere , Goniophotometer , power meter , LED driver tester , safety tester , environmental chamber , and many more to provide a total testing solution for LED based product

IES LM-79-08 standard

Approved Method: Electrical and photometric Measurements of Solid-state Lighting Product

Photometric Results

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)

Electrical Results:

  1. Input Power (Watts)
  2. Input Voltage (Volts )
  3. Input Current (Amps)
  4. Power Factor
  5. 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

ITC India Lab can do the testing of your LED product against the different standard like LM 79, IS 16106, IEC 60598-1, IEC 61347-2-13, IEC 62384, IEC62722-2-1, IEC 62031, IS 15885(part2/sec13), IS 16103, IS 16102, IEC 62612, and IEC 60969 etc  

LM 79 Testing for Solid State lighting; It includes below parameters like total lumens , CCT , CRI , Lm/watt , Luminous intensity distribution & electrical parameter like voltage , current , power & power factor ….

Popular Search about LM-79 Testing:-

  1. How to do LM-79 Testing?
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  4. LM-79 Testing for LED DownLight | LED Down Light Testing | LM 79 testing labs in India
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ITC India have around 5000 clients from LED lighting division from All over India. if you are interested to Get LM 79 Test Report.If you’re Buyers Demanding for LM-79 Testing – Contact Now!

Mr. Puneet Sharma | Call: 08196980555 | E-mail: ITCIndiaOne@Gmail.Com

Get Instant Quotations to fill out the Enquiry form below:

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LM-79 Testing | LM-79 Test Approved Methods

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LM-79 Testing | LM-79 Test Approved Methods

ITCIndia NABL Approved Electrical Safety Testing Laboratory, ITCIndia Laboratory is following the procedure as required by International Standard IEC 17025 and is already certified for ISO 17025 by NABL , has been awarded accreditation by the National Accreditation Board for Testing and Calibration Laboratories (NABL). Under the Energy Efficient Lighting Products Program. This includes LM-79 accreditation for Solid State Lighting Luminaires, Total Flux Measurements (Luminous Efficacy) & Solid State Lighting Luminaires, Luminous Intensity Measurements.

Definition of LM-79 Testing:

LM-79 is one approved method that describes procedures & precautions in performing measurement of LED products.

Scope of IES LM-79 testing:

LM-79 Testing is applied to solid-state lighting products that include the following requirements:

  • LED based products that are integrated control circuit and heat sinks
  • LED based products only requiring AC or DC power supply

And does not cover as bellow:

  • LED products requiring external operating circuits or heat sinks (bare LED chips, package and modules)
  • Fixtures designed for LED products but sold without a light source

 

Electrical Requirements:

  • SSL products work with AC power: voltage, electrical current, power, frequency, power factor
  • SSL products work with DC power: voltage, electrical current, power

Test Condition and Procedures/ LM-79 Procedures and Conditions:

  1. Ambient Conditions

  • Temperature–maintaining at 25℃±1℃ / Maintain temperature at 25 degrees C +/-1 degree C (within 1M)
  • Air Flow—limited/ Limited air flow
  • Mounting–limited thermal transfer

 

  1. Power Supply

  • Voltage regulation to +/- 2%
  • Voltage waveform (harmonic distortion< 3%) / AC wave shape limit to harmonic RMS of 3%
  1. Aging and Stabilization/ Seasoning and Stabilization

  • New SSL products can be put into tested without aging.
  • Before testing, SSL products should work for a certain time to reach up stable working temperature.
  1. Working Orientation/ Testing Orientation

  2. Electrical Settings

  3. Instrumentation

Test Method of Lm-79/ LM-79 Test Methods:

Integrating Sphere and Goniophotometer available to achieve the test report

Integrating Sphere: Integrating sphere systems are used to measure the total luminous flux and color for LM-79. This can be performed with a photometer (total luminous flux) or a spectral radiometer (spectral radiant flux). Utilizing a spectral radiometer and integrating sphere is the preferred method, which derives total luminous flux and color qualities form spectral radiant flux measurements. Click here to see (Video) how to do LM-79 Test with Integrating sphere systems

  • For measuring total luminous flux and color
  • Photometer – Total Luminous Flux
  • Spectral Radiometer (preferred) – Spectral Radiant
  • Flux (to derive total luminous flux and color qualities)

Goniophometer :  Goniophotometer systems are also used for LM-79 testing to measure luminous intensity distribution. The Goniophotometer system tests derive total luminous flux and provide color characteristics including CCT and CRI.

  • For measuring luminous intensity distribution
  • Total luminous flux is derived
  • Provides color characteristics with spectral radiometer including CCT, CRI

Testing Data of IES LM-79/ LM-79 Test Outputs and Calculations:

Photometric Requirements:

 

If you are Interested You can Fill out the form below to receive a quote on the LM-79 Testing to get started:

Contact Now!

Puneet Sharma

M: 08196980555 E: ITCIndiaOne@Gmail.Com