{"id":418,"date":"2026-04-15T15:23:37","date_gmt":"2026-04-15T13:23:37","guid":{"rendered":"https:\/\/agrolux.provesonlinevalles.com\/?page_id=418"},"modified":"2026-05-18T07:01:49","modified_gmt":"2026-05-18T05:01:49","slug":"light-measuring-protocol","status":"publish","type":"page","link":"https:\/\/agrolux.provesonlinevalles.com\/nl\/knowledge\/light-measuring-protocol\/","title":{"rendered":"Lichtmeetprotocol"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"418\" class=\"elementor elementor-418\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-131e204 e-flex e-con-boxed lakit-col-width-auto-no e-container e-root-container elementor-top-section e-con e-parent\" data-id=\"131e204\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ad0e3f8 elementor-widget elementor-widget-heading\" data-id=\"ad0e3f8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Lichtmeetprotocol<\/h1>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c7da094 e-flex e-con-boxed lakit-col-width-auto-no e-container e-root-container elementor-top-section e-con e-parent\" data-id=\"c7da094\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-818a697 e-con-full e-flex lakit-col-width-auto-no e-container e-con e-child\" data-id=\"818a697\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4332acf elementor-widget elementor-widget-heading\" data-id=\"4332acf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">A protocol to measure LED lighting in horticulture<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bec02a0 elementor-widget elementor-widget-text-editor\" data-id=\"bec02a0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Wageningen University &amp; Research (WUR), in collaboration with advisors and manufacturers from the horticultural sector, has developed a new light measurement protocol for LED installations. Gavita International B.V. is one of the manufacturers that actively contributed to the development of this new standard, which provides growers with greater clarity and confidence in a rapidly evolving LED market.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1b6c318 elementor-widget elementor-widget-button\" data-id=\"1b6c318\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/agrolux.provesonlinevalles.com\/wp-content\/uploads\/2026\/04\/light_measuring_protocol_a_protocol_to_measure_le-wageningen_university_and_research_702590.pdf\" download=\"\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Download here the Light Measuring Protocol!<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6575328 e-con-full e-flex lakit-col-width-auto-no e-container e-con e-child\" data-id=\"6575328\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-146503f elementor-widget elementor-widget-image\" data-id=\"146503f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/agrolux.provesonlinevalles.com\/wp-content\/uploads\/2026\/04\/horticultural_lighting_9_1_1x.webp\" class=\"attachment-full size-full wp-image-6725\" alt=\"\" srcset=\"https:\/\/agrolux.provesonlinevalles.com\/wp-content\/uploads\/2026\/04\/horticultural_lighting_9_1_1x.webp 1920w, https:\/\/agrolux.provesonlinevalles.com\/wp-content\/uploads\/2026\/04\/horticultural_lighting_9_1_1x-300x169.webp 300w, https:\/\/agrolux.provesonlinevalles.com\/wp-content\/uploads\/2026\/04\/horticultural_lighting_9_1_1x-1024x576.webp 1024w, https:\/\/agrolux.provesonlinevalles.com\/wp-content\/uploads\/2026\/04\/horticultural_lighting_9_1_1x-768x432.webp 768w, https:\/\/agrolux.provesonlinevalles.com\/wp-content\/uploads\/2026\/04\/horticultural_lighting_9_1_1x-1536x864.webp 1536w, https:\/\/agrolux.provesonlinevalles.com\/wp-content\/uploads\/2026\/04\/horticultural_lighting_9_1_1x-600x338.webp 600w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-af970c0 e-con-full e-flex lakit-col-width-auto-no e-container e-root-container elementor-top-section e-con e-parent\" data-id=\"af970c0\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t<div class=\"elementor-element elementor-element-df2db79 e-con-full e-flex lakit-col-width-auto-no e-container e-con e-child\" data-id=\"df2db79\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5df988b e-con-full e-flex lakit-col-width-auto-no e-container e-con e-child\" data-id=\"5df988b\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-563a209 elementor-widget elementor-widget-heading\" data-id=\"563a209\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">A New Standard for Measuring LED Lighting in Greenhouse Horticulture<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6224d0e elementor-widget elementor-widget-text-editor\" data-id=\"6224d0e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>LED lighting in greenhouse horticulture is becoming increasingly advanced. Modern installations are dimmable, feature multiple independently controllable light spectra, and are often applied dynamically within crop strategies. While these innovations offer new opportunities, they also make light measurements more complex. At the same time, growers need reliable and reproducible measurement results to make well-informed investment decisions.<\/p><p>The new WUR light measurement protocol is designed to reflect current practice. It clearly defines how measurements should be carried out, which sensors may be used, and how many measurement points are required. In addition, the protocol includes a practical calculation tool that provides insights into key parameters such as average light intensity per spectrum and light uniformity within the greenhouse. For growers, advisors, and manufacturers alike, the protocol represents an important step towards greater transparency and comparability. Measurements performed according to a shared standard deliver consistent results\u2014regardless of who performs the measurement. This helps growers better assess LED installations and builds trust in a market characterized by rapid technological innovation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-109ac82 e-flex e-con-boxed lakit-col-width-auto-no e-container e-root-container elementor-top-section e-con e-parent\" data-id=\"109ac82\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-e1fa824 e-con-full e-flex lakit-col-width-auto-no e-container e-con e-child\" data-id=\"e1fa824\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bd28f89 elementor-widget elementor-widget-heading\" data-id=\"bd28f89\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">5 key points summarized\n<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e781414 elementor-align-start elementor-mobile-align-center elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"e781414\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"icofont icofont-verification-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Measure light without sunlight (preferably at night) and as closely as possible to the conditions in the light calculation plan (screens, crop presence, fixture height, number of LED rows on).<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"icofont icofont-verification-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\"> Use a calibrated spectral light sensor to measure PAR and the individual light colours (blue, green, red and far\u2011red); standard PAR sensors are not suitable for LED measurements.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"icofont icofont-verification-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\"> Measure in two representative areas between LED fixtures, using at least 40 evenly spaced measurement points per area at the correct measuring height.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"icofont icofont-verification-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\"> Turn on the LED fixtures at least 30 minutes before measuring and make sure the intended spectrum and light intensity settings are active.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"icofont icofont-verification-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\"> Use the calculation tool to check average light level, uniformity and spectrum, and compare the results with the light calculation plan to confirm performance.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9886619 e-con-full e-flex lakit-col-width-auto-no e-container e-con e-child\" data-id=\"9886619\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0325174 elementor-widget elementor-widget-image\" data-id=\"0325174\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/agrolux.provesonlinevalles.com\/wp-content\/uploads\/2026\/04\/horticultural_lighting_7_1_1x-1.webp\" class=\"attachment-full size-full wp-image-6824\" alt=\"\" srcset=\"https:\/\/agrolux.provesonlinevalles.com\/wp-content\/uploads\/2026\/04\/horticultural_lighting_7_1_1x-1.webp 1920w, https:\/\/agrolux.provesonlinevalles.com\/wp-content\/uploads\/2026\/04\/horticultural_lighting_7_1_1x-1-300x169.webp 300w, https:\/\/agrolux.provesonlinevalles.com\/wp-content\/uploads\/2026\/04\/horticultural_lighting_7_1_1x-1-1024x576.webp 1024w, https:\/\/agrolux.provesonlinevalles.com\/wp-content\/uploads\/2026\/04\/horticultural_lighting_7_1_1x-1-768x432.webp 768w, https:\/\/agrolux.provesonlinevalles.com\/wp-content\/uploads\/2026\/04\/horticultural_lighting_7_1_1x-1-1536x864.webp 1536w, https:\/\/agrolux.provesonlinevalles.com\/wp-content\/uploads\/2026\/04\/horticultural_lighting_7_1_1x-1-600x338.webp 600w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-77c7370 e-flex e-con-boxed lakit-col-width-auto-no e-container e-root-container elementor-top-section e-con e-parent\" data-id=\"77c7370\" data-element_type=\"container\" 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Gavita International B.V. is one of the manufacturers that actively contributed to the development of this new standard, which provides growers with [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":410,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-418","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Light Measuring Protocol - Agrolux<\/title>\n<meta name=\"description\" content=\"A protocol to measure LED lighting in horticulture Wageningen University &amp; Research (WUR), in collaboration with advisors and manufacturers from the\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Light Measuring Protocol - Agrolux\" \/>\n<meta property=\"og:description\" content=\"A protocol to measure LED lighting in horticulture Wageningen University &amp; 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