{"id":16071,"date":"2013-12-05T02:53:06","date_gmt":"2013-12-05T07:53:06","guid":{"rendered":"http:\/\/www.olino.org\/us\/?p=16071"},"modified":"2015-10-05T12:01:14","modified_gmt":"2015-10-05T10:01:14","slug":"moooi-endurance-test-heracleum-ii-7v-dc","status":"publish","type":"post","link":"https:\/\/olino.org\/blog\/us\/articles\/2013\/12\/05\/moooi-endurance-test-heracleum-ii-7v-dc\/","title":{"rendered":"MOOOI – Endurance test Heracleum II 7V DC"},"content":{"rendered":"

\"\"<\/a>MOOOI has put an led luminaire in form of a branch of a tree, in endurance test. The power supply used is 7.0 V and an additional capacitor is used.<\/p>\n

This article presents the endurance test results. The test has run 25,000 hours.<\/p>\n

<\/p>\n

Summary Measurement Data<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n
parameter<\/th>\ninitially<\/th>\nafter 9,000 hrs endurance<\/th>\nafter 25,000 hrs endurance<\/th>\n<\/tr>\n
Color Temperature<\/td>\n2706 K<\/td>\n2708 K<\/td>\n2717 K<\/td>\n<\/tr>\n
Luminous Intensity Iv<\/sub><\/td>\n81.8 Cd<\/td>\n75.3 Cd<\/td>\n76.0 Cd<\/td>\n<\/tr>\n
Beam Angle<\/td>\n317 deg<\/td>\n317 deg<\/td>\n317 deg<\/td>\n<\/tr>\n
Power P<\/td>\n28.0 W<\/td>\n27.3 W<\/td>\n27.7 W<\/td>\n<\/tr>\n
Power Factor<\/a><\/td>\n0.81<\/td>\n0.81<\/td>\n0.82<\/td>\n<\/tr>\n
Luminous Flux<\/td>\n804 lm<\/td>\n740 lm<\/td>\n747 lm<\/td>\n<\/tr>\n
Luminous Efficacy<\/td>\n29 lm\/W<\/td>\n27 lm\/W<\/td>\n27 lm\/W<\/td>\n<\/tr>\n
CRI_Ra<\/td>\n85<\/td>\n85<\/td>\n84<\/td>\n<\/tr>\n
Coordinates Chromaticity Diagram<\/td>\nx=0.4588 and y=0.4092<\/td>\nx=0.4586 and y=0.4095<\/td>\nx=0.4576 and y=0.4095<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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

The lamp went into endurance test on 15 Nov 2012 and this intermediate reporting covers until Sept 2015.<\/p>\n

During this period of time the lamp has seen little variation in enviromental temperatures: the temperature close to the lamp varied between 15 – 30 deg C in that period. The lamps have been in a corridor in house.<\/p>\n

Variation of lamp parameters<\/h3>\n

\"2015_09_parameters\"<\/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

The extrapolation to the 70 % level of the luminous flux is possible when using the illuminance as a measure for the luminous flux.<\/p>\n

\"2015_09_Ev\"<\/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 goes to very high numbers of hours. We can extrapolate until 5 – 6 x the tested time, so the 70 % luminous flux quantity is expected to happen after 150,000 hours.<\/p>\n

Color change<\/h3>\n

The color change (change in color coordinates) is measured during the test period of the first 9,000 hours.<\/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 9,000 hours the color point remains inside an 1-step McAdams ellipse. This is a very good result for constancy of color.<\/p>\n","protected":false},"excerpt":{"rendered":"

MOOOI has put an led luminaire in form of a branch of a tree, in endurance test. The power supply used is 7.0 V and an additional capacitor is used. This article presents the endurance test results. The test has run 25,000 hours.<\/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\/16071"}],"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=16071"}],"version-history":[{"count":4,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/posts\/16071\/revisions"}],"predecessor-version":[{"id":22810,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/posts\/16071\/revisions\/22810"}],"wp:attachment":[{"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/media?parent=16071"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/categories?post=16071"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/tags?post=16071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}