Pdf latest developments in led standards researchgate. Download download lm 79 standard pdf read online read online lm 79 standard pdf lm 80 standard pdf lm 79 report iesna lm 80 lm 79 80 standards sample lm79 report ies lm 80. Free download this approved method describes iesna lm 7908 procedures to be followed and precautions to be observed in performing reproducible measurements of total luminous flux, electrical power, luminous intensity distribution, and chromaticity, of solidstate lighting ssl products for illumination purposes, under iesna lm 7908 conditions. Ies lm80 08 measuring lumen maintenance of led light sources illuminating engineering society 22sep2008 10 pages isbn.
The ies lm 80 is maintenance of lumens in order to increase the led life as required by the standards. Operation at three case temperatures 55c, 85c and one selected by manufacturer. Library lighting todays library is different in many ways from libraries of the past. Measuring lumen maintenance of led lighting sources temp. Lumen maintenance factor testing based on the ies illumination engineering society lm80 standard can be performed with the memory hilogger. Lm 80 provides no determination or estimation of expected life or lumen output beyond test data. Browse and download the latest philips photometric data. This document will be applicable to addendum a to ies lm 80 08 and lm 80 15 test reports once v2. The method for measuring luminous flux and color maintenance of led light sources has been documented in ies lm 80 08. 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. Rsz9508109000 page 3 of iesna lm 80 08 test report 1 general information 1.
Measuring luminous flux and color maintenance of led packages, arrays, and modules. All the test results are detail stated in the report. Ies tm2111 long term projection of lumen maintenance. To ensure proper performance, architectural details should allow for ventilation and air flow around the fixture. This document provides the results of crees ies lm 80 2008 lm 80 testing on xlamp leds. This document provides the results of crees ies lm 80 2008 and lm 80 2015 lm 80 testing on its led components.
The new version of lm 80 has gone through the accreditation process to become an ansi standard, and it is potentially establishing the work as a global standard. L70 lifetime is dependent upon many variables, such as the operating temperature, drive current, and the technology and materials used to construct the products. Drm is included at the request of the publisher, as it helps them protect their by restricting file sharing. Ies lm 80 approved method for measuring lumen depreciation of solidstate led light sources, arrays and modules. Ies lm 80 08 electrical and photometric measurements of solidstate lighting products people who bought this also bought. Secure pdf files include digital rights management drm software. Ies lm 80 08 measuring lumen maintenance of led light sourcesansi ies rp800 r2005 roadway lighting ansi approvedies tm1605 technical memorandum on light. Led drive characteristics have been updated to include pulse width modulated current, dc constant voltage and ac regulated voltage drive. 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. Ies lm80 08 report description of led light sources tested applicable product series ies lm80 08 report requirement ies tm2111 prediction ies lm 80 08 test summary ies lm 80 08 test result p. In previous works 3, 11, a deep and detailed reliability investigation of leds mounted on mids was presented in accordance with the ies lm 80 08 test standard, the ies tm2111 estimation. Epa intends to adopt addendum a to ies lm 80 08 as well as ansi ies lm 80 15 in the next revision of the energy star lamps and luminaires specifications i. When the leds are heating up, the reaction of light output reduction can be noticed in a few microseconds, and in turn its forward voltage also changes.
Ies lm 80 08 and its addendum a, ansi ies lm 80 15, and ies tm2111 and its addendum b1 for energy star certification of lighting products. Measuring lumen maintenance of led light sources revision. Ies lm 85 homogenizes highpower led measurement and characterizati. Lm 80 08 lumen maintenance data to times beyond the lm 80 test time. Ledge also offers superior definition to threedimensional objects and sparkle to reflective surfaces. 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 tm2111 projecting long term lumen maintenance of led light sources. Note that this document provides only the end results of the lm 80 tests. Ies lm85 homogenizes highpower led measurement and. This document provides the results of crees ies lm 80 2008 lm 80 testing on its led components. Tm21 lumen maintenance projections can be applied to luminaires and possibly lamps, through the. Note that this document only provides the end results of the lm 80 tests. The ies lm 80 qualification test method, page product nomenclature 3 average lumen maintenance characteristics 3 ies lm 80 test.
Ies lm 7908 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 ies tm2111 calculation, modeling extrapolating lm 80 test data to predict life ansiul 153. Therefore, l70 lifetime is defined by illuminating engineering society standard lm 80 08, entitled ies approved method for measuring lumen maintenance of led light sources. Ies lm8008 lumen and chromaticity maintenance test report. While many other standards for photometric measurements of light sources and luminaires are avail. R2dg61005010 page 3 of 8 ies lm 80 08 test report 1 general information 1. Measuring luminous flux and color maintenance of led. This document provides the results of crees ies lm802008 and lm802015 lm80 testing on its led components. Lm80, lm79, l70 and tm21, what are the differences for. 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. Ies lm 80 08 test report 150109w7 page 2 of distribution of part or all of the contents of this document to any 3rd party in any form without the. The plan of the ies to manage the lm 80 and tm21 documents in a cohesive and symbiotic manner and to place parameters such as test duration and sample size in the appropriate document. Pdf lumen maintenance predictions for led packages using. Photometric toolbox now includes the computation of the new luminaire classification system lcs in accordance with iesna tm1507, bug ratings, absolute photometry support, uwlr and the luminaire efficacy rating ler. It addresses maintenance testing and reporting for led packages and modules subcomponents.
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. Tm21 is important because it is referenced in the epa energy star guides, and customers generally are concerned about getting energy star approvals for their products. The scope within this ansiies lm8015 has been expanded to include tests for three types of flux. Does not define or provide methods for estimation of life. Measuring luminous flux and color maintenance of led packages, arrays and modules. Lm80 data is available to support all bxra led array products. Lumen maintenance data for each individual led light source please refer to the test data tables on pages 8 10.
At the solidstate lighting ssl system level such as led lamps, light engines, and luminaires, other system components, in addition to the led light sources, also contribute to luminous flux decay and color change over time. The test center executes the test operations with prudent manners. Epa energy star manufacturers guide requires l70 of 25,000 or 35,000 hours. Ies lm 80 08 approved method for measuring lumen maintenance of led light sources lm80 test report samsung electronics led business quality team report report no. Ies approved method for measuring lumen maintenance of led light sources. This document is intended to support the use of lm 80 data and associated projection methodologies i. Test lumen maintenance factor according to the ies lm80. Projected average rated life is 50,000 hours at 70% of lamp lumen output. Eparecognized laboratory for test standard ies lm 80 energy star program, org. Ies lm 7908 ies approved method for the electrical and photometric measurements of solidstate lighting products foreword this approved method is a guide developed for the measurement of solid state lighting ssl products. For a current lm 80 luminaire testing and angular distribution of light measurement services price list, or if you have any question about lm 80 please contact us. Electrical and photometric measurements of solidstate lighting products illuminating engineering society 01. Cree is providing this data so that the public can verify the reli ability of cree leds as part of a complete led lighting system. This approved method is a revision of iesna lm 451991, iesna approved method for the electrical and photometric measurements of general service incandescent filament lamps.
The lm 85 dc measurement procedure keeps the led operating in a specified dc current as the led is heating up, adjusts the. Ies lm 80 test data bridgelux has carried out extensive testing on multiple led arrays according to the ies lm 80 test protocols. The main test in lm80 is to maintain the rate of light output. Led components ies lm 80 testing results introduction this document provides the results of crees ies lm. Measuring luminous flux and color maintenance of led packages. R2dg14111005310 page 3 of 9 iesna lm 80 08 test report 1 general information 1.
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