{"id":786,"date":"2026-10-07T15:24:00","date_gmt":"2026-10-07T13:24:00","guid":{"rendered":"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/"},"modified":"2026-10-07T15:24:00","modified_gmt":"2026-10-07T13:24:00","slug":"led-4000k-loznice-denni-svetlo","status":"publish","type":"post","link":"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/","title":{"rendered":"LED \u017e\u00e1rovka \u010dty\u0159i tis\u00edce kelvin\u016f v lo\u017enici p\u016fsob\u00ed jako denn\u00ed sv\u011btlo"},"content":{"rendered":"

LED \u017e\u00e1rovka se \u010dty\u0159mi tis\u00edci kelviny v lo\u017enici potla\u010duje tvorbu melatoninu a posouv\u00e1 us\u00edn\u00e1n\u00ed o p\u016fldruh\u00e9 a\u017e dv\u011b hodiny \u2014 chov\u00e1me se, jako bychom pozd\u011b ve\u010der sed\u011bli v open-space kancel\u00e1\u0159i. Z deklarovan\u00e9 barevn\u00e9 teploty \u017e\u00e1rovky je\u0161t\u011b neplyne vhodnost do lo\u017enice. Plyne z toho jen \u00farove\u0148 modr\u00e9ho sv\u011btla v celkov\u00e9m spektru.<\/strong><\/p>\n

Pro\u010d chladn\u00e9 spektrum br\u00e1n\u00ed sp\u00e1nku<\/h2>\n

Sv\u011btlo se \u010dty\u0159mi tis\u00edci kelviny odpov\u00edd\u00e1 neutr\u00e1ln\u011b b\u00edl\u00e9mu osv\u011btlen\u00ed<\/a> \u00fakolov\u00fdch m\u00edstnost\u00ed \u2014 kuchyn\u00ed, pracoven nebo chodeb. Lo\u017enice vy\u017eaduje teplotu dvou tis\u00edc sedmi set a\u017e t\u0159\u00ed tis\u00edc kelvin\u016f, kter\u00e1 imituje z\u00e1pad slunce a umo\u017e\u0148uje pokles kortizolu. Kdy\u017e pou\u017eijeme \u010dty\u0159i tis\u00edce kelvin\u016f p\u0159ed span\u00edm, organismus interpretuje situaci jako pokra\u010duj\u00edc\u00ed den a v\u00fdrobu melatoninu odkl\u00e1d\u00e1 na dobu, kdy intenzita modr\u00e9ho sv\u011btla klesne.<\/p>\n

Co se stane v jedn\u00e9 lo\u017enici s nevhodnou teplotou<\/h2>\n

V jednom byt\u011b vym\u011bnili majitel\u00e9 v\u0161echny \u017e\u00e1rovky za LED zdroje se \u010dty\u0159mi tis\u00edci kelviny \u2014 lo\u017enice byla kr\u00e1sn\u011b prosv\u011btlen\u00e1 a prosv\u011btlen\u00e1 byla jako open space v deset ve\u010der. Us\u00edn\u00e1n\u00ed se posunulo o hodinu a p\u016fl, rann\u00ed vst\u00e1v\u00e1n\u00ed prov\u00e1zela \u00fanava a b\u011bhem t\u0159\u00ed t\u00fddn\u016f se dostavily poruchy koncentrace. Po n\u00e1vratu ke tepl\u00e9mu osv\u011btlen\u00ed kolem dvou tis\u00edc sedmi set kelvin\u016f se re\u017eim normalizoval do p\u011bti dn\u016f.<\/p>\n

Jak rozd\u011blit teploty podle m\u00edstnost\u00ed<\/h2>\n

Lo\u017enice dostane dv\u011b tis\u00edce sedm set a\u017e t\u0159i tis\u00edce kelvin\u016f, ob\u00fdvac\u00ed pokoj t\u0159i tis\u00edce a\u017e t\u0159i tis\u00edce p\u011bt set kelvin\u016f, kuchyn\u011b a pracovna \u010dty\u0159i tis\u00edce kelvin\u016f<\/a>. Chodby a technick\u00e9 prostory snesou i \u010dty\u0159i tis\u00edce p\u011bt set kelvin\u016f. Pokud dr\u017e\u00edme tepl\u00e9 spektrum tam, kde t\u011blo p\u0159ipravujeme na sp\u00e1nek, a chladn\u00e9 spektrum tam, kde \u0159e\u0161\u00edme \u00fakoly, mozek dost\u00e1v\u00e1 srozumiteln\u00fd sign\u00e1l a cirkadi\u00e1nn\u00ed rytmus z\u016fst\u00e1v\u00e1 stabiln\u00ed.<\/p>\n

N\u011bkdy sta\u010d\u00ed jeden n\u00e1kup \u017e\u00e1rovek v \u0161ed\u00e9m balen\u00ed a m\u00edsto odpo\u010dinku se zm\u011bn\u00ed v m\u00edsto, kde t\u011blo marn\u011b \u010dek\u00e1 na soumrak \u2014 jen\u017ee soumrak u\u017e m\u011bl p\u0159ij\u00edt p\u0159ed dv\u011bma hodinami.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u010cty\u0159itis\u00edcovka u postele dr\u017e\u00ed denn\u00ed re\u017eim. Do lo\u017enice pat\u0159\u00ed tepl\u00e1 b\u00edl\u00e1 kolem 2700 K.<\/p>\n","protected":false},"author":2,"featured_media":785,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[96],"tags":[],"class_list":["post-786","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologie"],"yoast_head":"\nLED \u017e\u00e1rovka \u010dty\u0159i tis\u00edce kelvin\u016f v lo\u017enici p\u016fsob\u00ed jako denn\u00ed sv\u011btlo - ckddiz<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LED \u017e\u00e1rovka \u010dty\u0159i tis\u00edce kelvin\u016f v lo\u017enici p\u016fsob\u00ed jako denn\u00ed sv\u011btlo - ckddiz\" \/>\n<meta property=\"og:description\" content=\"\u010cty\u0159itis\u00edcovka u postele dr\u017e\u00ed denn\u00ed re\u017eim. Do lo\u017enice pat\u0159\u00ed tepl\u00e1 b\u00edl\u00e1 kolem 2700 K.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/\" \/>\n<meta property=\"og:site_name\" content=\"ckddiz\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-07T13:24:00+00:00\" \/>\n<meta name=\"author\" content=\"Michal Ho\u0159\u00e1k\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napsal(a)\" \/>\n\t<meta name=\"twitter:data1\" content=\"Michal Ho\u0159\u00e1k\" \/>\n\t<meta name=\"twitter:label2\" content=\"Odhadovan\u00e1 doba \u010dten\u00ed\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/\"},\"author\":{\"name\":\"Michal Ho\u0159\u00e1k\",\"@id\":\"https:\/\/ckddiz.cz\/blog\/#\/schema\/person\/cd9000a12ce54feed9195bd08510c4b7\"},\"headline\":\"LED \u017e\u00e1rovka \u010dty\u0159i tis\u00edce kelvin\u016f v lo\u017enici p\u016fsob\u00ed jako denn\u00ed sv\u011btlo\",\"datePublished\":\"2026-10-07T13:24:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/\"},\"wordCount\":407,\"publisher\":{\"@id\":\"https:\/\/ckddiz.cz\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/ckddiz.cz\/blog\/wp-content\/uploads\/2026\/10\/led-4000k-loznice-denni-svetlo.jpg\",\"articleSection\":[\"Technologie\"],\"inLanguage\":\"cs\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/\",\"url\":\"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/\",\"name\":\"LED \u017e\u00e1rovka \u010dty\u0159i tis\u00edce kelvin\u016f v lo\u017enici p\u016fsob\u00ed jako denn\u00ed sv\u011btlo - ckddiz\",\"isPartOf\":{\"@id\":\"https:\/\/ckddiz.cz\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/ckddiz.cz\/blog\/wp-content\/uploads\/2026\/10\/led-4000k-loznice-denni-svetlo.jpg\",\"datePublished\":\"2026-10-07T13:24:00+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/#breadcrumb\"},\"inLanguage\":\"cs\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"cs\",\"@id\":\"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/#primaryimage\",\"url\":\"https:\/\/ckddiz.cz\/blog\/wp-content\/uploads\/2026\/10\/led-4000k-loznice-denni-svetlo.jpg\",\"contentUrl\":\"https:\/\/ckddiz.cz\/blog\/wp-content\/uploads\/2026\/10\/led-4000k-loznice-denni-svetlo.jpg\",\"width\":1200,\"height\":675,\"caption\":\"Ilustra\u010dn\u00ed stock. Nezobrazuje luxury lookbook.\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\u016f\",\"item\":\"https:\/\/ckddiz.cz\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"LED \u017e\u00e1rovka \u010dty\u0159i tis\u00edce kelvin\u016f v lo\u017enici p\u016fsob\u00ed jako denn\u00ed sv\u011btlo\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/ckddiz.cz\/blog\/#website\",\"url\":\"https:\/\/ckddiz.cz\/blog\/\",\"name\":\"ckddiz\",\"description\":\"Praktick\u00e9 n\u00e1vody k technice a vybaven\u00ed\",\"publisher\":{\"@id\":\"https:\/\/ckddiz.cz\/blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/ckddiz.cz\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"cs\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/ckddiz.cz\/blog\/#organization\",\"name\":\"ckddiz\",\"url\":\"https:\/\/ckddiz.cz\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"cs\",\"@id\":\"https:\/\/ckddiz.cz\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/ckddiz.cz\/blog\/wp-content\/uploads\/2025\/06\/ckddiz-logo.jpg\",\"contentUrl\":\"https:\/\/ckddiz.cz\/blog\/wp-content\/uploads\/2025\/06\/ckddiz-logo.jpg\",\"width\":2048,\"height\":2048,\"caption\":\"ckddiz\"},\"image\":{\"@id\":\"https:\/\/ckddiz.cz\/blog\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/ckddiz.cz\/blog\/#\/schema\/person\/cd9000a12ce54feed9195bd08510c4b7\",\"name\":\"Michal Ho\u0159\u00e1k\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"cs\",\"@id\":\"https:\/\/ckddiz.cz\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/747b341e7777673e8ce04820596576b6a1fe8ef8738b3ef92252a7a9049dc3c6?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/747b341e7777673e8ce04820596576b6a1fe8ef8738b3ef92252a7a9049dc3c6?s=96&d=mm&r=g\",\"caption\":\"Michal Ho\u0159\u00e1k\"},\"url\":\"https:\/\/ckddiz.cz\/blog\/author\/michal-horak\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"LED \u017e\u00e1rovka \u010dty\u0159i tis\u00edce kelvin\u016f v lo\u017enici p\u016fsob\u00ed jako denn\u00ed sv\u011btlo - ckddiz","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/","og_locale":"cs_CZ","og_type":"article","og_title":"LED \u017e\u00e1rovka \u010dty\u0159i tis\u00edce kelvin\u016f v lo\u017enici p\u016fsob\u00ed jako denn\u00ed sv\u011btlo - ckddiz","og_description":"\u010cty\u0159itis\u00edcovka u postele dr\u017e\u00ed denn\u00ed re\u017eim. Do lo\u017enice pat\u0159\u00ed tepl\u00e1 b\u00edl\u00e1 kolem 2700 K.","og_url":"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/","og_site_name":"ckddiz","article_published_time":"2026-10-07T13:24:00+00:00","author":"Michal Ho\u0159\u00e1k","twitter_card":"summary_large_image","twitter_misc":{"Napsal(a)":"Michal Ho\u0159\u00e1k","Odhadovan\u00e1 doba \u010dten\u00ed":"2 minuty"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/#article","isPartOf":{"@id":"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/"},"author":{"name":"Michal Ho\u0159\u00e1k","@id":"https:\/\/ckddiz.cz\/blog\/#\/schema\/person\/cd9000a12ce54feed9195bd08510c4b7"},"headline":"LED \u017e\u00e1rovka \u010dty\u0159i tis\u00edce kelvin\u016f v lo\u017enici p\u016fsob\u00ed jako denn\u00ed sv\u011btlo","datePublished":"2026-10-07T13:24:00+00:00","mainEntityOfPage":{"@id":"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/"},"wordCount":407,"publisher":{"@id":"https:\/\/ckddiz.cz\/blog\/#organization"},"image":{"@id":"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/#primaryimage"},"thumbnailUrl":"https:\/\/ckddiz.cz\/blog\/wp-content\/uploads\/2026\/10\/led-4000k-loznice-denni-svetlo.jpg","articleSection":["Technologie"],"inLanguage":"cs"},{"@type":"WebPage","@id":"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/","url":"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/","name":"LED \u017e\u00e1rovka \u010dty\u0159i tis\u00edce kelvin\u016f v lo\u017enici p\u016fsob\u00ed jako denn\u00ed sv\u011btlo - ckddiz","isPartOf":{"@id":"https:\/\/ckddiz.cz\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/#primaryimage"},"image":{"@id":"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/#primaryimage"},"thumbnailUrl":"https:\/\/ckddiz.cz\/blog\/wp-content\/uploads\/2026\/10\/led-4000k-loznice-denni-svetlo.jpg","datePublished":"2026-10-07T13:24:00+00:00","breadcrumb":{"@id":"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/#breadcrumb"},"inLanguage":"cs","potentialAction":[{"@type":"ReadAction","target":["https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/"]}]},{"@type":"ImageObject","inLanguage":"cs","@id":"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/#primaryimage","url":"https:\/\/ckddiz.cz\/blog\/wp-content\/uploads\/2026\/10\/led-4000k-loznice-denni-svetlo.jpg","contentUrl":"https:\/\/ckddiz.cz\/blog\/wp-content\/uploads\/2026\/10\/led-4000k-loznice-denni-svetlo.jpg","width":1200,"height":675,"caption":"Ilustra\u010dn\u00ed stock. Nezobrazuje luxury lookbook."},{"@type":"BreadcrumbList","@id":"https:\/\/ckddiz.cz\/blog\/led-4000k-loznice-denni-svetlo\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Dom\u016f","item":"https:\/\/ckddiz.cz\/blog\/"},{"@type":"ListItem","position":2,"name":"LED \u017e\u00e1rovka \u010dty\u0159i tis\u00edce kelvin\u016f v lo\u017enici p\u016fsob\u00ed jako denn\u00ed sv\u011btlo"}]},{"@type":"WebSite","@id":"https:\/\/ckddiz.cz\/blog\/#website","url":"https:\/\/ckddiz.cz\/blog\/","name":"ckddiz","description":"Praktick\u00e9 n\u00e1vody k technice a vybaven\u00ed","publisher":{"@id":"https:\/\/ckddiz.cz\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/ckddiz.cz\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"cs"},{"@type":"Organization","@id":"https:\/\/ckddiz.cz\/blog\/#organization","name":"ckddiz","url":"https:\/\/ckddiz.cz\/blog\/","logo":{"@type":"ImageObject","inLanguage":"cs","@id":"https:\/\/ckddiz.cz\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/ckddiz.cz\/blog\/wp-content\/uploads\/2025\/06\/ckddiz-logo.jpg","contentUrl":"https:\/\/ckddiz.cz\/blog\/wp-content\/uploads\/2025\/06\/ckddiz-logo.jpg","width":2048,"height":2048,"caption":"ckddiz"},"image":{"@id":"https:\/\/ckddiz.cz\/blog\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/ckddiz.cz\/blog\/#\/schema\/person\/cd9000a12ce54feed9195bd08510c4b7","name":"Michal Ho\u0159\u00e1k","image":{"@type":"ImageObject","inLanguage":"cs","@id":"https:\/\/ckddiz.cz\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/747b341e7777673e8ce04820596576b6a1fe8ef8738b3ef92252a7a9049dc3c6?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/747b341e7777673e8ce04820596576b6a1fe8ef8738b3ef92252a7a9049dc3c6?s=96&d=mm&r=g","caption":"Michal Ho\u0159\u00e1k"},"url":"https:\/\/ckddiz.cz\/blog\/author\/michal-horak\/"}]}},"_links":{"self":[{"href":"https:\/\/ckddiz.cz\/blog\/wp-json\/wp\/v2\/posts\/786","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ckddiz.cz\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ckddiz.cz\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ckddiz.cz\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ckddiz.cz\/blog\/wp-json\/wp\/v2\/comments?post=786"}],"version-history":[{"count":0,"href":"https:\/\/ckddiz.cz\/blog\/wp-json\/wp\/v2\/posts\/786\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ckddiz.cz\/blog\/wp-json\/wp\/v2\/media\/785"}],"wp:attachment":[{"href":"https:\/\/ckddiz.cz\/blog\/wp-json\/wp\/v2\/media?parent=786"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ckddiz.cz\/blog\/wp-json\/wp\/v2\/categories?post=786"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ckddiz.cz\/blog\/wp-json\/wp\/v2\/tags?post=786"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}