{"id":9172,"date":"2011-10-12T03:05:16","date_gmt":"2011-10-12T07:05:16","guid":{"rendered":"http:\/\/www.olino.org\/us\/?p=9172"},"modified":"2015-05-02T18:02:05","modified_gmt":"2015-05-02T22:02:05","slug":"endurance-test-ipled-20x-led-module-on-external-power-supply","status":"publish","type":"post","link":"https:\/\/olino.org\/blog\/us\/articles\/2011\/10\/12\/endurance-test-ipled-20x-led-module-on-external-power-supply\/","title":{"rendered":"Endurance test IPLED 20x led module on external power supply"},"content":{"rendered":"

\"\"<\/a> IPLED<\/a> presents a set of 20 led modules on a power supply.<\/p>\n

This lamp has been measured at zero hours (new state)<\/a> before it went into the endurance test.<\/p>\n

This article presents the endurance test results.<\/p>\n

<\/p>\n

Samenvatting meetgegevens<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
parameter<\/th>\ninitially<\/th>\nafter endurance<\/th>\nremarks<\/th>\n<\/tr>\n
Color Temperature<\/td>\n6839 K<\/td>\n7652 K<\/td>\nCold white, increased in value.<\/td>\n<\/tr>\n
Luminous Intensity Iv<\/sub><\/td>\n363.6 Cd<\/td>\n330.0 Cd<\/td>\nWent up at beginning and then down<\/td>\n<\/tr>\n
Beam Angle<\/td>\n123 deg<\/td>\n122 deg<\/td>\nAlmost no variation.<\/td>\n<\/tr>\n
Power P<\/td>\n14.8 W<\/td>\n17.8 W<\/td>\n<\/td>\n<\/tr>\n
Power Factor<\/a><\/td>\n0.89<\/td>\n0.88<\/td>\nNo variation.<\/td>\n<\/tr>\n
Luminous Flux<\/td>\n1151 lm<\/td>\n1033 lm<\/td>\n<\/td>\n<\/tr>\n
Luminous Efficacy<\/td>\n63 lm\/W<\/td>\n58 lm\/W<\/td>\n<\/td>\n<\/tr>\n
CRI_Ra<\/td>\n65<\/td>\n66<\/td>\n<\/td>\n<\/tr>\n
Coordinates Chromaticity Diagram<\/td>\nx=0.3063 and y=0.3306<\/td>\nx=0.2964 and y=0.3166<\/td>\n<\/td>\n<\/tr>\n
Measurement Report (PDF)<\/td>\n\"olino-pdf\"<\/a><\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Test duration and test environment<\/h3>\n

The lamp went into endurance test on 12 Dec 2010 and the test lasted until 30 Aug 2011.<\/p>\n

During this period of time the lamp has seen the following ambient temperature and ambient relative humidity.<\/p>\n

\"\"<\/a><\/p>\n

Period Oct 2010 – March 2011
\n<\/em><\/p>\n

\"\"<\/a><\/p>\n

Period May 2011 – August 2011
\n<\/em><\/p>\n

The ambient temperature close to the lamp varied between 3-29 deg C and the relative humidity between 35-80 %.<\/p>\n

Variation of lamp parameters<\/h3>\n

\"\"<\/a><\/p>\n

The variation of the lamp parameters during the endurance test.<\/em><\/p>\n

See the explanation on the OliNo site<\/a> for more on the test method.<\/p>\n

An extrapolation is done to get to the 70 % illuminance value. The illuminance value straight underneath the lamp is expected to be the good indicator of the total luminous flux. When this illuminance drops with 30 % then the luminous flux is expected to drop as well with 30 %. The assumption is here that the beam anlge and the radiation diagram remains the same. This has been checked, see also the initial table.<\/p>\n

\"\"<\/a><\/p>\n

Extrapolation of the illuminance.<\/em><\/p>\n

See the explanation on the OliNo site<\/a> for more explanation and the link to the ASSIST document for the method of extrapolation.<\/p>\n

The result is 17,000 hours before the L70 is reached.<\/p>\n

Color change<\/h3>\n

The color change (change in color coordinates) is measured during the test period.<\/p>\n

\"\"<\/a><\/p>\n

Change in color coordinates during the endurance test.<\/em><\/p>\n

The color coordinates indicated with the red cross-hairs are the coordinates after 1000 burn hours. These are taken as reference. After 6000 hours the color point gets outside the 4-step McAdams ellipse.<\/p>\n","protected":false},"excerpt":{"rendered":"

IPLED presents a set of 20 led modules on a power supply. This lamp has been measured at zero hours (new state) before it went into the endurance test. This article presents the endurance test results.<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[32],"tags":[],"_links":{"self":[{"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/posts\/9172"}],"collection":[{"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/comments?post=9172"}],"version-history":[{"count":4,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/posts\/9172\/revisions"}],"predecessor-version":[{"id":21287,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/posts\/9172\/revisions\/21287"}],"wp:attachment":[{"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/media?parent=9172"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/categories?post=9172"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/tags?post=9172"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}