Ies lm79 electrical and photometric measurements of. Ies lm7908 measurement and test report for statement. All stabilization and measurements were made in compliance with ies lm 79 08. Input current, power, power factor, luminous flux, luminous efficacy, cri, cct, chromaticity coordinate, spectral power. In 2008, the illuminating engineering society of north america ies published lm7908. This model can then be used to project the average lumen maintenance of an led product beyond the actual number of operating hours tested. 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. Photometric measurements of roadway sign installations reaffirmed 2014 lm 5412. Mozilla firefox features all elements of modern browsing, such as a tabbed interface, live bookmarks, private browsing, smart bookmarks, and many more. This document is intended to support the use of lm80 data and associated projection methodologies i. Electrical and photometric measurement of solidstate lighting products sec. Iesna lm7908 ies approved method for the electrical and.
Electricaland photometricmeasurements of solidstate lighting products renderedto. Ies lm 79 08 measurement and test report for overdrive electronics pvt. Rsz11051010 lm 79 2008 test reportpage 5 of 23 3 test method test methods according to iesna lm 79 08 following chapter. The eu energy labels are ready for download on the relevant product page at. Ies lm8008 measuring lumen maintenance of led light. Standard for selfballasted lamps and lamp adapters. This resulted in two new metrics for daylit spaces. Electrical and photometric measurement of high intensity discharge lamps. Note that the current iteration of the lm7908 standard does not call out the cct, nor the drive current of the sample tested. The temperature of the dut at the led temperature measurement point tmp led defined by the dut manufacturer. Why are special test procedures required for this technology, and what kind of information is gleaned.
Introduction to simulating leedv4 daylighting credit. The ambient temperature of the sample was maintained at 25 c1c during measurement. Lm79 test reports and luminaire led quality and performance. Energy star requirements for the use of lm 80 data page september 28, 2017 2 of 6 2 definitions case temperature t s. Ies lm 79 08 measurement and test report for statement. Ies lm 58 ies approved method for spectroradiometric measurement methods for light sources, includes addenda 2015. L70 lifetime is dependent upon many variables, such as the operating temperature, drive current, and the technology and materials used to construct the products. This approved method describes the procedures to be followed and precautions to be observed in performing reproducible accurate measurements of total luminous, radiant, or photon flux. Ies lm 80 08 the temperature measurement point for the device under. Therefore, the led industry adopted a method, described in ies tm2111, to fit an exponential lumen maintenance model to actual lm80 data. The following test report is prepared on behalf of green creative ltd. Ies lm802008 test report cree xlamp xpe high efficiency white leds revision.
Iesna lm7908 electrical and photometric measurement of solid state lighting products ul 1993 1999. Understanding lm79 reports better buildings initiative energy. This report must not be used by the customer to claim product certification, approval. Approved method for the electrical and photometric. Description of led light sources xlamp xpe high efficiency white leds xpehew all measurements provided are led package. Lm 79 is the illuminating engineers society north america iesna approved. Electrical and photometric measurements of solidstate lighting.
Ies lm7908 measurement and test report for carson technology co ltd 6f. Optical and electrical measurements of solidstate lighting products. While this approach seems prudent, this spec shall remain. Temperature is measured at a position inside the sphere. The ambient temperature of the sample was maintained at 25c1c during measurement. All bsi british standards available online in electronic and print formats. Ies lm8008 report description of led light sources tested applicable product series ies lm8008 report requirement ies tm2111 prediction ies lm8008 test summary ies lm8008 test result p. 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. Totalluminousflux, luminousefficacy, electricalvalues,luminousintensity. Understanding lm79 reports in 2008, the illuminating engineering society of north america ies published lm7908, approved method for the electrical and photometric measurements of solidstate lighting products. Mozilla firefox is a free and open source web browser by the mozilla foundation. Lm80, lm79, l70 and tm21, what are the differences for.
Electrical and photometric measurements of solidstate lighting products. Ies lm8008 measuring lumen maintenance of led light sources illuminating engineering society on. Ies tm2814, projecting longterm luminous flux maintenance of led lamps and. Ies lm8312 was created to develop a new suite of metrics capable of describing multiple important dimensions of daylighting performance in an existing building and a new design, from concept through construction documents. Ies lm7908 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. Lumen maintenance launching the energy iesna lm 80 2008 iesna. Electrical and photometric measurements of solidstate lighting products prepared by. Comparative evaluation between ansi ies standards lm7919. Ies lm58 ies approved method for spectroradiometric measurement methods for light sources, includes addenda 2015. Ies lm8008 measuring lumen maintenance of led light sources.
Comparative evaluation between ansi ies standards lm7919 and lm7908. Luminous f lux, chromaticity, luminous intensity distribution test engineer. Technical light data for professional led lighting products lm79. Annual sunlight exposure ase lx,250h lm83 also attempts to standardize many unknowns in typical simulation processes. In addition, the rfp should stipulate that the lm79. Firefox is created by a global nonprofit dedicated to putting individuals in control online.
This test may not be duplicated or used in part without prior written consent from bay area compliance laboratories corp. Ies lm 79 08 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. The temperature of the thermocouple attachment point on the led light source package as defined by the manufacturers of the package. Luminous flux, color, luminous intensity distribution test engineer. Ies lm7908 measurement and test report for overdrive electronics pvt. Energy star requirements for the use of lm80 data page june 22, 2017 2 of 6 2 definitions case temperature t s. Source shall cool to room temperature prior to measurementmeasurement. In some cases the temperature measurement point is defined as the solder point on the printed circuit board. Ies lm 79 2008 electrical and photometric measurements of solidstate lighting products 2. Download mozilla firefox for mac free web browser mozilla.
Lumen maintenance launching the energy iesna lm 80. Ies lm8008 the temperature measurement point for the device under. Ies lm8008 and its addendum a, ansiies lm8015, and ies tm2111 and its addendum b1. This document, concerning leds is an action issued by the. Measuring luminous flux and color maintenance of led lamps, light engines, and luminaires. All stabilization and measurements were made in compliance with ies lm7908. Ies lighting library illuminating engineering society. While many other standards for photometric measurements of light sources and luminaires are avail. Electrical and photometric measurements of solidstate. An approved method by the illuminating engineering society ies daylight metrics committee. Specifications for the chromaticity of solid state lighting products. Partner company name zhongshan luxmode industrial co.
Firefox features great performance, support for all major web standards, and includes special developer tools. Number of led light sources tested see individual test reports. This report must not be used by the customer to claim product certification, approval, or endorsement by nvlap, nist, or any agency of the u. Ies lm 8312 was created to develop a new suite of metrics capable of describing multiple important dimensions of daylighting performance in an existing building and a new design, from concept through construction documents. A goniophotometer is used to characterize spatial distribution of light. Iesna lm79 test report lamar lighting company, inc. The product was operated at rated voltage or at voltage required by manufacturer. Energy star requirements for the use of lm 80 data page june 22, 2017 2 of 6 2 definitions case temperature t s. Light emitting diode led equipment for use in lighting products. Ies approved method for the electrical and photometric measurements of solidstate lighting products. Energy star requirements for the use of lm80 data page september 28.
Primary contact name kevin chao primary contact email or address kevin. Ies lm 79 08 measurement and test report for carson technology co ltd 6f. Recommended that measurements use a spectroradiometer to collect color data as welluse a spectroradiometer to collect color data as well. America or iesna developed lm7908 and lm8008 for led fixture and led device. It was first used in the us energy star program in 2008 and has.
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