Particular requirements for led luminaires ies lm8008 approved method for measuring lumen maintenance of led light sources ies tm21. Led components ies lm80 testing results introduction this document provides the results of crees ies lm802008 and lm802015 lm80 testing on its led components. Cree is providing this data so that the public can verify the reliability of cree leds as part of a complete led lighting system. Apr 20, 2020 this document recommends the methods for projecting longterm luminous flux maintenance of led lamps and luminaires using data obtained when testing them per ies lm 8414, approved method for measuring lumen and color maintenance of led lamps, light engines, and luminaires, as well as data when testing led sources per ies lm 80 08, approved. Print version available end of august this document describes the procedures by which leds are tested for the luminous or radiant, or photon flux maintenance and chromaticity maintenance or wavelength changes over time when operated under controlled environmental and. Delivering up to 4700lm, intense lightings gravity high lumen led downlighting is ideal for even, quality light distribution in existing ceilings. Energy star program guidance regarding led package, led array and led module lumen maintenance performance data supporting qualification of lighting products. Observation of led light sources failures including the failure conditions and time of failure. Lumen value measured in accordance with ies lm 80 08. Led luminaires led light engines ies lm79 photometric meas. Performance data supporting qualification of lighting products. Pdf per today, commercial claims for ledbased products in terms. The gravity 4inch architectural warm dim cylinder with remote driver enclosuer is a beautifully designed highperformance led downlight ideal for spaces where recessed luminaires cannot be accommodated. Ribbonflex home series 120950 tape lighting uses 120 leds per meter 3.
The led light sources c an be stated as the most promising techn ology for the last decade from the lighting technology poi nt of view. The reliability of any led is a direct function of junction temperature. The lm8008 standard specifically describes the testing method and measurement of the led light source. Measuring luminous flux and color maintenance of led. Led package, led array and led module lumen maintenance. Roadway lighting ansi approvedies tm1605 technical memorandum on light emitting diode led sources and systemscie 1272007 measurement of ledsansiies lm6302 r2008 ansi approved standard file format for electronic transfer of photometric data and related informationansiies rp1605 nomenclature and. Csa listed, conforms to ul standard 8750mfg, class 2 nec compliant, for dry location use only. Ies lm8008, or lm80 for led packages, led arrays, and led modules. Measuring luminous flux and color maintenance of led packages, arrays and modules, includes errata 1. The scope within this ansiies lm8015 has been expanded to include tests for three types of flux maintenance along with tests for how chromaticity changes over time. Energy star program requirements for integral led lamps v1. It is generally established that the human eye is only sensitive to lumen depreciation of 30% or more.
Led drive characteristics have been updated to include pulse width modulated current. The scope within this ansi ies lm 80 15 has been expanded to include tests for three types of flux maintenance along with tests for how chromaticity changes over time. Measuring luminous flux and color maintenance of led packages. The measurement of lumen and color maintenance for led packages is prescribed by ies lm 80 08 measuring lumen maintenance of led light sources, while the projection of lumen maintenance beyond the duration of available lm 80 data is prescribed by ies. The purpose of lm 80 08 is to determine the lumen maintenance of an led package, array or module after 6,000 hours of operation under specific.
Source color leds rated for standard color rendering cri 80, r9 0 and fixture to fixture color accuracy within 3 sdcm. Method for measur i ng lumen maintenance of led light sources. Using high quality led packages that are tested according to the ies lm8008 standard and interpolated with ies tm2111, linear works led modules are produced with a projected lumen maintenance of l80 lifetime of up to 50,000 hours. Ies approved method for measuring lumen maintenance of led light sources. Lm80 test reports will typically consist of multiple data sets, each reporting the absolute luminous flux values relative to the led drive current, over a duration of 6,000 hours andor 10,000 hours, as set out in the lm8008 standard. Ies lm8008 approved method for measuring lumen maintenance of led light sources model 0. Ies lm8008, approved method for measuring lumen maintenance of led, year. Lm 80 led lumen maintenance and life test system issuu. Energy star requirements for the use of lm80 data page 4 of 8 3 content of lm80 test reports for energy star certification 1. Led chip data measured in accordance to ies lm8008.
Ies lm8008 measuring lumen maintenance of led light sources illuminating engineering society on. Iec 6472 particular requirements for dc or ac supplied electronic control gear for led modules iec 62776 doublecapped led lamps for general lighting services safety specifications electrical, photometric and lumen maintenance test conducted as defined by ies lm7908 and ies lm8008 test led t8 sg 15,000hrs tubular lamps application areas. Data from an ies lm8008 report can be used to predict the lumen maintenance of an led under various temperature and drive. Gravity delivers when cost of ownership is analyzed. Energy star program for solid state lighting and ies lm8008. Lm8008 is the illuminating engineering society of north america iesna approved standard for measuring the lumen depreciation of solidstate lighting sources, such as led packages, modules and arrays. Ies lm8008 measuring lumen maintenance of led light sourcesansiies rp800 r2005 roadway lighting ansi approvedies tm1605 technical memorandum on light emitting diode led sources and systemsies lm5894 iesna guide to spectroradiometric measurementsies lm7807 total luminous flux measurement of lamps using an integrating sphere. The scope within this ansiies lm8015 has been expanded to include tests for three types. Lumen value measured in accordance to ies lm 80 08. Ies lm8008 measuring lumen maintenance of led light sources illuminating engineering society 22sep2008 10 pages isbn. It has a voltage rating from 120 to 277volts ac, current rating of 0.
Rated life of 50,000 hours l70 based on led testing per lm8008 and projected values using iesna tm2111. Below is an excerpt from the doe fact sheet on led lifetimes. Ies lm 80 08 measuring lumen maintenance of led light sources illuminating engineering society 22sep2008 10 pages isbn. Capturing the lighting edge august, 2012 new york, ny. The scope within this ansi ies lm8015 has been expanded to include tests for three types of flux maintenance along with tests for how chromaticity changes over time. Pdf lumen maintenance predictions for led packages using.
Use with 4inch nominal recessed housings suitable for residential and shallow plenum. All led products, just like any other electronic product, are put through testing stages before being released for sale on any platform. See lighting facts labels for specific fixture performance. Applicable product series applicable product series of this ies lm 80 08 report shows in appendix report. It features a highly configurable single point source led. Actual efficacy value is dependent on specified led driver power supply.
Energy star program guidance regarding led package, led array and led module. Lsg5000 moving detector type c goniophotometer fullfield speed goniophotometer is for led measurement and completely meets lm7919 clause 9. Find the most uptodate version of ies lm80 at engineering360. This approved method is one of a continuing series of iesna. This approved method is one of a continuing series of iesna approved methods, which are written to permit reliable comparison of test results among laboratories by establishing uniform test methods. Find the most uptodate version of ies lm 80 at engineering360. Led lumen maintenance lifetime estimates for the reach desk lamp are based on two. Ies lm8008 measuring lumen maintenance of led light sourcesansiies rp800 r2005 roadway lighting ansi approvedies tm1605 technical memorandum on light emitting diode led sources and systemsies lm5894 iesna guide to spectroradiometric measurementsies lm7807 total luminous flux measurement of. Each maximum run requires a dedicated power feed from the driver. Measuring lumen maintenance of led light sources, covers the measuring of lumen depreciation of solidstate light sources, arrays. Led drive characteristics have been updated to include pulse width modulated current, dc constant voltage and ac regulated voltage drive. Optical degradation mechanisms of midpower whitelight leds.
Ies lm8008 iesna approved method for measuring lumen maintenance of led light sources iec 6472 particular requirements for d. Lm79 moving detector type c goniophotometer fullfield. The document covers luminous, radiant, or photon flux maintenance. In order to facilitate a comparison of the long term performance between different leds, the led industry, illuminating engineering society of north america iesna developed a standard for measuring lumen maintenance of led light sources, i. All the test results are detail stated in the report.
Do not extend beyond the recommended maximum run length. Following are the terms of the energy star partnership agreement as it pertains to the manufacture and labeling of energy star qualified products. Cree classifies these leds as led packages per sep 9, 2011 energy star guidelines1. Led lifespan based on iesna lm8008 results and calculated per iesna tm2111 methodology. The standard is not in the scope of accreditation 1. For candela intensity distribution, eei, color temperature distribution and ies, ldt files measurement.
The test center executes the test operations with prudent manners. There may be a risk in doing this as tm21 only relies on. Lumen degradation lifetime estimation method for led light sources. Lumen maintenance test method written by iesna illuminating engineering society of north america led package, array or module driven by auxiliary driver leds are driven with external current sources during operation and lumen maintenance testing led case temperature is controlled during operation. Measuring luminous flux and color maintenance of led packages, arrays and modules. Procedures are listed for testing lumen maintenance over a period of time. Iesna lm802008 measuring lumen maintenance of led light.
Therefore, l70 lifetime is defined by illuminating engineering society standard lm8008, entitled ies approved method for measuring lumen maintenance of led light sources. Leds are rated for 65,000hours based on ies lm8008 lumens maintenance testing. Ies lm8008 measuring lumen maintenance of led light. In order to facilitate a comparison of the long term performance between different leds, the led industry developed a standard, ies lm 80 08, which specifies how led manufacturers and lighting manufacturers can test led components to determine their performance over time. The purpose of this document is to provide guidance regarding lumen maintenance test reports i.
Ansi ies lm 80 15 provides the methods for measurement of luminous flux and color maintenance for led packages, arrays, and modules. Lumen value measured in accordance with ies lm8008. Measuring lumen maintenance of led lighting sources temp. Lumen maintenance predictions for led packages using lm80 data. Optical degradation mechanisms of midpower whitelight. Ies lm8008 ies tm2111 ies lm8212 general questions and answers. This document recommends the methods for projecting longterm luminous flux maintenance of led lamps and luminaires using data obtained when testing them per ies lm8414, approved method for measuring lumen and color maintenance of led lamps, light engines, and luminaires, as well as data when testing led sources per ies lm8008, approved. Gravity features field changeable optics, drivers, reflectors, and thermal management.
Led lumen maintenance and life test system ledlm80pl. Ies lm8008 measuring lumen maintenance of led light sources. The measurement of lumen and color maintenance for led packages is prescribed by ies lm8008 measuring lumen maintenance of led light sources, while the projection of lumen maintenance beyond the duration of available lm80 data is prescribed by ies. Using high quality led packages that are tested according to the ies lm 80 08 standard and interpolated with ies tm2111, linear works led modules are produced with a projected lumen maintenance of l80 lifetime of up to 50,000 hours. Lumen maintenance test method written by iesna illuminating engineering society of north america led package, array or module driven by auxiliary driver leds are driven with external current sources during operation and lumen maintenance testing led. The led lamp delivers a light output with 3000k color temperature. In this paper, the optical degradation mechanisms of midpower whitelight leds, were studied by using high temperature operation life tests, according to the ies standard lm8008. Measuring lumen maintenance of led light sources and clients requirements were implemented per the following items. Ansiies lm8015 provides the methods for measurement of luminous flux and color maintenance for led packages, arrays, and modules. However, the light output of ssl products gradually goes down over time.
Recognizing the need for an industry standard that would also help users evaluate led products, in 2008 the illuminating engineering society of north america ies published lm80. The illuminating engineering society of north america ies created lm8008 to establish guidelines and procedures for the testing of solidstate lighting ssl products, such as led packages, modules, and arrays not complete fixtures. Ies lm 80 08 iesna approved method for measuring lumen maintenance of led light sources iec 6472 particular requirements for d. Highperformance leds produce 4000 lumens and are rated to maintain 70% of light output at 50,000 hours of service. This is the iesrecommended method for projecting the lumen degradation of an led package, array or module beyond the lm80 test period. Measuring luminous flux and color maintenance of led packages, arrays and modules errata 1 browse. Theperchip current density of the maximum forward current of applicable product series is identical construction process is used for the applicable product series. Note, however that while lm80 provides a standard method for testing lumen maintenance, it does not provide guidance or recommendations for predicting or. Cree now uses standardized ies lm8008 and tm2111 methods for collecting longterm data and extrapolating led lumen maintenance. Measuring lumen maintenance of led light sourcesthis approved method is one of a continuing series of iesna. The energy star partner must adhere to the following partner commitments. Halo new construction flood distribution shallow directional housing in galvanized finish, has steel plaster frame for added durability. Lm80 test reports must illustrate that subcomponent testing was conducted in accordance with the testing method outlined in ies lm8008 and its addendum a, or in ies lm80152, except as otherwise detailed in this. Solidstate lighting ssl systems have become subject to testing designed by the illuminating engineering society of north america iesna, tests lm79 please click the link for more information.
Standard test methods for led products standard method purpose ies lm 79 08 absolute light output, efficacy, color for led products ies lm 80 08 relative light output over time, temperature for led packages ies lm 8212 relative references lm 79 light output, efficacy, color over temperature for light engines. Sep 09, 2016 iesna lm8008 all led products, just like any other electronic product, are put through testing stages before being released for sale on any platform. Per today, commercial claims for ledbased products in terms of lumen maintenance are fully based on tm21 extrapolations using lm80 data. Minimum of 20 units to use a multiplication factor of 6 times the duration sample size of 10 to 19 units a multiplication factor of 5. Lm80, lm79, l70 and tm21, what are the differences for. Per today, commercial claims for led based products in terms of lumen maintenance are fully based on tm21 extrapolations using lm80 data. Measuring luminous flux and color maintenance of led packages, arrays.
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