LM-79 Testing Laboratory

What are LM 79 Test Outcomes?

Posted on January 24, 2017

What are LM 79 Test Outcomes?

LM-79 is approved test method for electrical and photometric measurements of Solid State Lighting Products. It describes the procedure in measuring total luminous flux, electrical power, luminous intensity distribution, chromaticity under standard conditions. It covers LED based SSL products with control electronics and heat sink incorporated with AC or DC power supply. This does not include LED chips, LED package or LED module but luminaries (fixtures incorporating light source) as well as integrated LED lamps.

The equipment used in LM-79 is integrated sphere and goniophotometer.

Integrating Sphere Goniophotometer

The test report shall list all significant data for each SSL product tested together with performance data. The outcomes of the LM-79 test are:

Correction factor applied ( e.g. spectral mismatch, self absorption , intensity distribution etc.)
Measured total luminous flux( lumen(lm)), input voltage(v), current(a), power(w), Luminous intensity distribution(cd), efficacy(lm/w)
Color quantities( chromaticity coordinates, CCT, CRI )
Spectral power distribution
Bandwidth of spectoradiometer, if spectral distribution and/or color quantities are reported.
Statement of uncertainties (if required)
Deviation from standard operating procedures, if any.

Here is the link of a test report issued by our prestigious company. LM 79 Test Outcomes

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: [email protected]

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

Posted on July 12, 2016 Updated on July 12, 2016

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:

Chromaticity coordinates: (Chroma x / Chroma y / Chroma u(u’) / Chroma v / Chroma v’)
Correlated Color Temperature (CCT)
Duv Value
Color Ratio
Peak Wavelength (nm)
Half Bandwidth (nm)
Dominant Wavelength (nm)
Color Purity
Color Rendering Index (CRI – Ra)

Photometric Parameters:

Total Luminous Flux (Lumens)
Luminous Efficacy (Lumens/Watt)
Radiant Power (Watts)

Electrical Results:

Input Power (Watts)
Input Voltage (Volts )
Input Current (Amps)
Power Factor
Input Frequency (Hz)

Additional Parameters:

Stabilization Time (Light and Power) = 60 minutes
Test Geometry Configuration = 4π
Spectroradiometer = (Lisun LMS-9000A Plus)
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:-

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: [email protected]

Get Instant Quotations to fill out the Enquiry form below:

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LM-79 Testing | LM-79 Test Approved Methods

Posted on May 6, 2016 Updated on May 6, 2016

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:

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

Power Supply

Voltage regulation to +/- 2%
Voltage waveform (harmonic distortion< 3%) / AC wave shape limit to harmonic RMS of 3%

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.

Working Orientation/ Testing Orientation
Electrical Settings
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: [email protected]

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LM-79 Testing Service in India

Posted on December 16, 2015 Updated on June 30, 2017

Find LM-79 Testing Service in Your Area

ITCIndia specializes in the measurement of Solid State Lighting per IES standards including NABL accredited LM-79 luminaire testing. ITCIndia laboratory is NABL Approved LM-79 Luminaire Testing, LM-79 Luminaire Testing for ENERGY STAR® for SSL, and is accredited to provide test and measurement under ISO 17025.

ITC India NABL approved Testing Laboratory (with Certificate No. T 1811 attached herewith) with specialization to test against EN and IEC standards for electrical safety leading to CE/NIST/IEC certification. Our Lab is fully equipped with high accuracy measuring testing Instruments and trained personal to provide testing & certification services for different type of products according to IEC Standards. Some of which are IEC 60335–1, IEC 60601, IEC 61010, IEC 60204, IEC 60598, IEC 60950, IEC 61427, BS EN 50262, etc…..

The laboratory is following the procedure as required by International Standard IEC/ISO 17025 and is already certified for IEC/ISO 17025 by NABL.ITC INDIA performing ELECTRICAL SAFETY TESTING for the following:
EMC/EMI Testing Machinery Testing Luminaries and Lightning Testing Electro Medical Equipments Testing Laboratory Equipment Testing Household Appliances Testing IT and Telecom Equipment Testing Environmental Testing Battery Testing. LM 79

ITCIndia’s LM-79 luminaire and lamp testing fully evaluates the assembled luminaire for total flux, electrical power, efficacy (lm/watt), chromaticity, and angular distribution of light.

ITCIndia provides LM-79 luminaire and lamp testing reports for:

ENERGY STAR®
LED Lighting Facts
DesignLight Consortium

The standard LM-79 luminaire test report includes:

Luminaire Efficacy
Zonal Lumen Density
Visible spectral power distribution
CRI
CCT
CQS
Chromaticity coordinates
Color over angle
Various electrical measurements
IES file
Equipment

ITCIndia testing facilities are equipped with multiple type-c moving mirror color goniophotometers and integrating spheres up to 3 meters in diameter – ideal for testing large troffers and LED street lights.

ITCIndia laboratory features both a Type A and Type C Goniometer for testing a wide variety of luminaires.

What is LM-79 Luminaire Testing?

LM-79 Luminaire Testing

LM-79-08. It is the Illuminating Engineering Society of North America (IESNA) approved method for the Electrical and Photometric Measurements of Solid-State Lighting. It measures an LED luminaire or integral lamp as a whole system according to a standard process using specified equipment.

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

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

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

LM-79 Luminaire 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.

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.

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

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

Need guidance? Our LED Luminaire Testing FAQ will help!

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Call us at 8196980555 or email [email protected] for price information or an immediate quote today.

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LM-79 Testing Laboratory

What are LM 79 Test Outcomes?

The equipment used in LM-79 is integrated sphere and goniophotometer.

The test report shall list all significant data for each SSL product tested together with performance data. The outcomes of the LM-79 test are:

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Mr. Puneet Sharma | Call: 08196980555 | E-mail: [email protected]

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

Colorimetric Parameters:

Photometric Parameters:

Electrical Results:

Additional Parameters:

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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: [email protected]

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LM-79 Testing | LM-79 Test Approved Methods

Definition of LM-79 Testing:

Scope of IES LM-79 testing:

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

And does not cover as bellow:

Electrical Requirements:

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

Ambient Conditions

Aging and Stabilization/ Seasoning and Stabilization

Working Orientation/ Testing Orientation

Electrical Settings

Instrumentation

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

Integrating Sphere and Goniophotometer available to achieve the test report

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.

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

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Puneet Sharma

M: 08196980555 E: [email protected]

Find LM-79 Testing Service in Your Area

ITCIndia provides LM-79 luminaire and lamp testing reports for:

The standard LM-79 luminaire test report includes:

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

LM-79 Luminaire Testing Scope:

Absolute Photometry Basis:

Relative vs. Absolute Photometry:

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