LM-79 test reports and luminaire LED quality and performance
What are the limitations of LM-79?
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.
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What are LM 79 Test Outcomes?
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
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Mr. Puneet Sharma | Call: 08196980555 | E-mail: [email protected]
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What is LM 79 Test methodology?
What is LM 79 Test methodology?
LM 79 is an approved method that describes the procedure to be followed and precautions to be observed in performing reproducible measurements of total Luminous flux, electrical power, luminous intensity distribution, chromaticity of Solid-State lighting products for illumination purposes under standard conditions.
LM 79 covers- LED based SSL products with control electronics and heat sinks. Luminaries (fixtures incorporating light source) as well integrated LED lamps.
LM 79 doesn’t cover– fixtures without a light source, SSL products that require external operating.
LM 79
Test method for total luminous flux Measurements:
The total luminous flux of SSL product shall be measured with an Integrating Sphere or Goniophotometer. The method may be chosen depending upon what other measurements quantities (color, intensity distribution) need to be measured., the size of SSL products, and other requirements.
The integrating sphere is suited for total luminous flux and color measurements of integrated LED lamps and relative small size LED luminaries. Advantage of using integrating sphere is that it does not requires the “ Dark Room”., and also it is less time consuming.
The Goniophotometer provides measurements of Luminous Intensity Distribution as well as total luminous flux. It can take measurements of larger size luminaries as well as small size luminaries. It has to be installed in Dark Room. Measurements in goniophotometer are time consuming.
| Integrating Sphere | Goniophotometer | |
| Conditions | No Dark room | Dark Room |
| Size of SSL | Small Size luminaries | Large size as well as small size Luminaries |
| Measurements | Total Luminous Flux | Light Intensity Distribution , Total Luminous Flux |
| Duration of Test | Fast Measurements | Time consuming as compared to Sphere photometer. |
If you’re Buyers Demanding for Luminaries Testing– Contact Now!
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LM 79 Testing for LED Floodlights and Streetlights in Mumbai Maharashtra India
LM 79 Testing for LED Floodlights and Streetlights in Mumbai Maharashtra India
If you are looking for LM-79 testing Laboratory for LED Floodlights and Streetlights Testing in India. or If your Buyers Demanding for LM-79 testing Services – Contact Now! If you have any Requirement for LM 79 testing.
ITC India NABL accreditation Electrical Safety Testing Providing LM 79 testing services for LED Floodlights and LED Streetlights in all over India like , Mumbai, Maharashtra Pune, Delhi, New Delhi, Jaipur, Bangalore, Hyderabad, Chennai, Kolkata, Surat and etc..
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 Lab is fully equipped with high accuracy Measuring Instruments and trained personnel to provide testing and certification Services for Electrical and Electronic equipments. ITC India 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 Street Light | 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) c. Light Intensity Distribution Test |
| 2. | LED Flood Light | 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)
c. Light Intensity Distribution Test |
Testing parameter under LM 79 testing for LED Floodlights and Streetlights:
- Measurement of Total Luminous Flux & Luminous Efficacy
- Color Characteristics (Chromaticity Coordinates, Correlated Color Temperature & Color Rendering Index)
- Light Intensity Distribution Test.
- Voltage, current, wattage, Power factor
If you want details and quotations for Lm-79 Testing, Kindly send us the following details:
- Product Technical Specifications and Brochure
- Product Images
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If you have any Query for LM-79 testing for LED Flood Light & LED Street Light, You can feel free to Contact us.
ITC India has around 5000 clients from LED lighting division from All over India. if you are interested to Get LM 79 Test Report Or If you’re Buyers Demanding for LM-79 Testing – Contact Now!
Mr. Puneet Sharma | Call: 08196980555 | E-mail: [email protected]
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LED Tube Light Safety Testing as per IEC 60598-2-1 | LM-79 testing | IP Testing India
Need to Get LED Tube Light Safety Testing as per IEC 60598-2-1, LM-79 testing, IP Testing in India?
ITCIndia Nabl Accredited Electrical safety Testing Laboratory Providing LED Tube Light Safety Testing and Certification Services as per IEC 60598-2-1, if you are looking for LED Tube Light Safety Testing Laboratory in your Area, you can feel free to contact us, ITCIndia also providing LM-79 testing, and IP testing for LED Tube Lights, if you are interested, we will be happy to assist you.
- LM-79 Testing Report , LM-79 Test Requirements & Procedure
- LM-79 Testing | LM-79 Test Approved Methods
- How to do LM-79 Testing?
- IP Testing
General Requirements for LED Tube Light Testing and Certification and Procedure:
-
Classification for LED Tube Light Safety Testing as per IEC 60598-2-1
- Type of protection Class 0 excluded Class II
- Degree of protection Requirement: Ordinary IP20
- Luminaire suitable for direct mounting on normally flammable surfaces.
- Luminaire not suitable for direct mounting on normally flammable surfaces
- Luminaire for normal use
- Luminaire for rough service
-
Marking for LED Tube Light Safety Testing as per IEC 60598-2-1:
- Mandatory markings
- Position of the marking
- Format of symbols/text
- Additional information
- Language of instructions
- Combination luminaires
- Nominal frequency in Hz 50/60 Hz
- Operating temperature
- Symbol or warning notice
- Wiring diagram
- Special conditions
- Metal halide lamp luminaire – warning
- Limitation for semi-luminaires
- Power factor and supply current
- Suitability for use indoors
- Luminaires with remote control
- Clip-mounted luminaire – warning
- Specifications of protective shields
- Symbol for nature of supply
- Rated current of socket outlet
- Rough service luminaire
- Mounting instruction for type Y, type Z and some Type X attachments
- Non-ordinary luminaires with PVC cable
- Protective conductor current in instruction if applicable
- Provided with information if not intended to be mounted within arms reach
- Test with water
- Test with hexane
- Legible after test
- Label attached
- Construction
- Creepage distances and clearances
- Provision for earthing
- Screw terminals
- Screw less terminals and electrical connections
- External and internal wiring
- Protection against electric shock
- Endurance test and thermal test
- Resistance to dust, solid objects and moisture
- Insulation resistance and electric strength
- Resistance to heat, fire and tracking
And etc………
Please give us the following information to quote you:
- LED Tube Light photograph
- Intended use of the LED Tube Light
- Technical specification of the LED Tube Light.
We hope to have the opportunity to work with you in the future
For Further Clarification Please feel free to Contact Now! We would be happy to assist you
Mr. Puneet Sharma | Call: 08196980555 | Email: [email protected]
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LM-79 Testing for LED Flood lights, LM-79 Procedure, lm 79 Test Report
LM-79 Testing for LED Flood lights
If you are looking for LM-79 Testing for LED Flood lights, ITC India NABL Accredited Electrical Safety Testing Laboratory provide LM-79 Testing for LED Flood Light includes accreditation for Solid State Lighting Luminaires, Total Flux Measurements (Luminous Efficacy) & Solid State Lighting Luminaires, Luminous Intensity Measurements.
The Testing to be conducted is as follows:-
LM-79 Testing on LED Flood lights Testing as per standard
Test to be conducted under LM 79 for LED Flood lights:
1. Measurement of Total Luminous Flux
& Luminous Efficacy
2. Color Characteristics (Chromaticity
Coordinates, Correlated Color
Temperature & Color Rendering Index)
3. Light Intensity Distribution Test
IES LM-79-08 Testing Parameters for LED Flood lights
LM-79 Testing Approved Method: Electrical and photometric Measurements of Solid-state Lighting Product
LM-79 Test Photometric Results for LED Flood lights:
Colorimetric Parameters for LED Flood lights:
- 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 for LED Flood lights:
- Total Luminous Flux (Lumens)
- Luminous Efficacy (Lumens/Watt)
- Radiant Power (Watts)
Electrical Results for LED Flood lights:
- Input Power (Watts)
- Input Voltage (Volts )
- Input Current (Amps)
- Power Factor
- Input Frequency (Hz)
Additional Parameters for LED Flood lights:
- Stabilization Time (Light and Power) = 60 minutes
- Test Geometry Configuration = 4π
- Spectroradiometer = (Lisun LMS-9000A Plus)
- Ambient Temperature = 25.0°C
