{"id":13798,"date":"2013-03-31T09:18:45","date_gmt":"2013-03-31T13:18:45","guid":{"rendered":"http:\/\/www.olino.org\/us\/?p=13798"},"modified":"2013-07-02T03:44:57","modified_gmt":"2013-07-02T07:44:57","slug":"lumitext-endurance-test-20x-lumistring-led-modules-3-5050-sw57","status":"publish","type":"post","link":"https:\/\/olino.org\/blog\/us\/articles\/2013\/03\/31\/lumitext-endurance-test-20x-lumistring-led-modules-3-5050-sw57\/","title":{"rendered":"LumitexT – Endurance test 20x Lumistring LED modules (3-5050-SW57)"},"content":{"rendered":"

\"\"<\/a>LumitexT has put a set of 20 ledmodules called lumoBOX-XT in endurance test.<\/p>\n

This article presents the endurance test results. The test has run 10.000 hours and shows a behavior of first declining light output and then increasing again until initial level.<\/p>\n

See here<\/a> the results of the 0-hours test.<\/p>\n

<\/p>\n

Summary Measurement Data<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
parameter<\/th>\ninitially<\/th>\nafter 6000 hrs endurance<\/th>\nafter 10000 hrs endurance<\/th>\nremarks<\/th>\n<\/tr>\n
Color Temperature<\/td>\n6869 K<\/td>\n6618 K<\/td>\n6721 K<\/td>\n<\/td>\n<\/tr>\n
Luminous Intensity Iv<\/sub><\/td>\n302.2 Cd<\/td>\n258.6 Cd<\/td>\n322.9 Cd<\/td>\nSee remarks at luminous flux<\/td>\n<\/tr>\n
Beam Angle<\/td>\n121 deg<\/td>\n121 deg<\/td>\n121 deg<\/td>\n<\/td>\n<\/tr>\n
Power P<\/td>\n16.0 W<\/td>\n15.7 W<\/td>\n15.7 W<\/td>\n<\/td>\n<\/tr>\n
Power Factor<\/a><\/td>\n0.93<\/td>\n0.93<\/td>\n0.95<\/td>\n<\/td>\n<\/tr>\n
Luminous Flux<\/td>\n935 lm<\/td>\n800 lm<\/td>\n1006 K<\/td>\nA reduction of flux as been measured initially during a significant amount of time after which it increased again.<\/td>\n<\/tr>\n
Luminous Efficacy<\/td>\n59 lm\/W<\/td>\n51 lm\/W<\/td>\n64 lm\/W<\/td>\nSee remarks at luminous flux<\/td>\n<\/tr>\n
CRI_Ra<\/td>\n77<\/td>\n76<\/td>\n77<\/td>\n<\/td>\n<\/tr>\n
Coordinates Chromaticity Diagram<\/td>\nx=0.3082 and y=0.3189<\/td>\nx=0.3112 and y=0.3259<\/td>\nx=0.3096 and y=0.3245<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n<\/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 27 Oct 2011 until 22 Dec 2012.<\/p>\n

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

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

Period Sept 2011 – Jan 2012.
\n<\/em><\/p>\n

<\/em><\/p>\n

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

Jan 2012 – Mar 2012.<\/em><\/p>\n

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

April 2012 – July 2012.<\/em><\/p>\n

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

July 2012 – Sept 2012.<\/em><\/p>\n

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

Sept 2012 – Nov 2012.
\n<\/em><\/p>\n

The ambient temperature close to the lamp varied between 14-32 deg C and the relative humidity between 15-80 %.<\/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

No extrapolation to the 70 % level of the luminous flux is possible when using the illuminance as a measure for the luminous flux. The illuminance decreased at first and after 5000 hours started to increase until initial level.<\/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 extrapolation of this data until 70 % of illuminance is reached could not be done as explained before.<\/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 10000 hours the color point remains inside the 4-step McAdams ellipse.<\/p>\n","protected":false},"excerpt":{"rendered":"

LumitexT has put a set of 20 ledmodules called lumoBOX-XT in endurance test. This article presents the endurance test results. The test has run 10.000 hours and shows a behavior of first declining light output and then increasing again until initial level. See here the results of the 0-hours test.<\/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\/13798"}],"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=13798"}],"version-history":[{"count":9,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/posts\/13798\/revisions"}],"predecessor-version":[{"id":13801,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/posts\/13798\/revisions\/13801"}],"wp:attachment":[{"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/media?parent=13798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/categories?post=13798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/tags?post=13798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}