What is the LM-79 Testing of LED Lights?

Posted on

What is the LM-79 Testing of LED Lights?

LM-79 Testing for LED Lights

LM-79 is an approved method for taking electrical and photometric measurements of SSL products. It 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 results.

ITCIndia Offering you a complete choice of services which include LM 79 Testing, Safety Testing, Electrical Testing, IEC/EN/IS/BS/ISO Testing, IP testing as per IEC 60529 and Cable Gland Testing.

ITCIndia Laboratory has been awarded accreditation by the NABL under the Energy Efficient Lighting Products Program. This includes LM-79 accreditation for Solid State Lighting Luminaires – Total Flux Measurements (Luminous Efficacy) and Solid State Lighting Luminaires –Luminous Intensity Measurements.

Our accreditation also includes IES LM-80:2008 for Solid State Lighting Luminaires-Lumen Maintenance (SSL Life Tests).

ITCIndia laboratory is also on the LED Lighting Facts Approved Labs List.

ITCIndia can do safety testing against below international standard like

  •    IEC 61010-1 : lab instruments
  •    IEC 60204-1 : COntrol panel
  •    IEC 60595 : LED luminary
  •    IEC 61347 : Lamp control gear
  •    IEC 60950 : Information technology equipments
  •    IEC 60601 : Electromedical equipmets
  •    IEC 60065 : Audio video & similar product
  •    IEC 61439 : Low voltage switchgear & control gear assemblies
  •    IEC 60034 : rotating electrical machine and more contact us for more information…

LM-79 Definition and Scope

IES 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.

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

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

LM-79 Procedures and Conditions

  • Ambient Conditions
  • Maintain temperature at 25 degrees C +/-1 degree C (within 1M)
  • Mounting – limit thermal transfer
  • Limited air flow
  • Power Supply
  • AC waveshape limit to harmonic RMS of 3%
  • Voltage regulation to +/- 2%
  • Seasoning and Stabilization
  • Testing Orientation
  • Electrical Settings
  • Instrumentation

LM-79 Testing Methods

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.

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.

LM-79 Test Outputs and Calculations

  • Total Luminous Flux
  • Luminous Intensity Distribution
  • Electrical Power
  • Luminous Efficacy
  • Chromaticity
  • CCT
  • CRI

For your better understanding, we are going to show you the LM-79 test report of latest LED in the following:

Learn more about this Lm-79 test >

If you’re Buyers Demanding for LM-79 Testing for LED Lights– 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]

Get Instant Quotations, Fill the Enquiry form:


LM-79 Testing for LED Batten | LM-79 Test Reports | lm 79 testing labs

Posted on

LM-79 Testing for LED Batten, LM-79 Test Reports, lm 79 testing labs in India

LM-79 Testing for LED Batten, LM-79 Test Reports, lm 79 testing labs in India

If you Require Testing of LED Batten as per LM-79. ITC India Can Help You! ITC India One of the Best LM-79 testing Laboratory in India. If you have any requirement related LED Batten Testing, you can feel free to contact us. (Call: +91-8196980555)

ITC India NABL Accredited Electrical Safety Testing Laboratory organizing LM 79 testing Testing for LED Batten lights, in all over India. If you are looking for NABL Approved LM-79 Testing Laboratory in your Area, ITC India Can do LM-79 Test for LED Batten lights in a Week.

ITC India NABL Approved Electrical Safety Testing laboratory under ELECTRICAL, ELECTRONICS and PHOTOMETRY testing with certificate no. T-3509, T-3570 & T-1811. ITC India Laboratory is fully equipped with high accuracy Measuring Instruments and trained personnel to provide testing and certification Services for Electrical and Electronic equipments. ITC Lab is following the procedure as required by International Standard IEC 17025 and is already certified for ISO/IEC 17025.

The Testing to be conducted is as follows:-

S.NO. PRODUCT Testing as per standard
1 LED Batten Test to be conducted under LM 79:

a. Measurement of Total Luminous Flux

& Luminous Efficacy

b. Color Characteristics (Chromaticity

Coordinates, Correlated Color

Temperature & Color Rendering Index)

Photometric and Electric Testing as per IES LM-79:

IES LM-79 Testing Approved Method:- Electrical and Photometric Measurements of Solid-State Lighting Products includes three sections:

  • Section 9: Total Flux Measurements
  • Section 10: Luminous Intensity Measurements
  • Section 12: Color Characteristics Measurements. Manufacturers must also submit the IES file containing Section 10 measurements to verify compliance with the zonal lumen density or spacing criteria requirements.

Get Instant Quote, Please send us the following details:

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

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
  6. LM 79 testing for LED product
  7. LM-79 Testing Service in India

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

ITC India has around 5000 clients from LED lighting division from All over India.

If you are interested to Get LM 79 Test Report, You can Please feel free to Ask for Quotation.

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

Get Instant Quotations, Fill the Enquiry form: