LM-79 Testing for LED Solar Street Light

What are the limitations of LM-79?

Posted on February 7, 2017

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: [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 ….

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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]

Get Instant Quotations to fill out the Enquiry form below:

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