{"id":23106,"date":"2026-10-01T07:00:00","date_gmt":"2026-10-01T06:00:00","guid":{"rendered":"https:\/\/www.sunflux.dk\/da\/?p=23106"},"modified":"2026-09-23T19:32:29","modified_gmt":"2026-09-23T18:32:29","slug":"12v-vs-24v-led-strips","status":"publish","type":"post","link":"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips","title":{"rendered":"12V vs. 24V LED strips \u2013 hvilken sp\u00e6nding skal du v\u00e6lge?"},"content":{"rendered":"<p><strong>Kort svar:<\/strong> Til korte LED-strip installationer kan b\u00e5de 12 V og 24 V fungere fint. Til l\u00e6ngere str\u00e6k er 24 V ofte den teknisk bedre l\u00f8sning, fordi str\u00f8mmen bliver lavere ved samme effekt. Det reducerer sp\u00e6ndingsfald og g\u00f8r kabelf\u00f8ring og effektfordeling lettere.<\/p>\n<p>Se <a href=\"https:\/\/www.sunflux.dk\/da\/12vdc-led-baand\">12V LED strips<\/a> og <a href=\"https:\/\/www.sunflux.dk\/da\/24vdc-led-baand\">24V LED strips<\/a>.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Indholdsfortegnelse<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Hvorfor_findes_LED_strips_i_forskellige_spaendinger\" >Hvorfor findes LED strips i forskellige sp\u00e6ndinger?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Den_elektriske_forskel\" >Den elektriske forskel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Spaendingsfald\" >Sp\u00e6ndingsfald<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Hvornaar_skal_du_vaelge_12V\" >Hvorn\u00e5r skal du v\u00e6lge 12V?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Hvornaar_skal_du_vaelge_24V\" >Hvorn\u00e5r skal du v\u00e6lge 24V?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Hvor_langt_kan_en_strip_vaere\" >Hvor langt kan \u00e9n strip v\u00e6re?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Stroemforsyning_og_reserve\" >Str\u00f8mforsyning og reserve<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Kan_12V_og_24V_blandes\" >Kan 12V og 24V blandes?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Daempning\" >D\u00e6mpning<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Kabeldimension_betyder_noget\" >Kabeldimension betyder noget<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Hvorfor_bliver_stroemmen_halveret_ved_24V\" >Hvorfor bliver str\u00f8mmen halveret ved 24V?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Spaendingsfald_%E2%80%93_praktisk_eksempel\" >Sp\u00e6ndingsfald \u2013 praktisk eksempel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#12V_giver_kortere_segmenter\" >12V giver kortere segmenter<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#24V_til_professionelle_installationer\" >24V til professionelle installationer<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Kabeldimension\" >Kabeldimension<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Eksempel_3_meter_under_koekkenskabe\" >Eksempel: 3 meter under k\u00f8kkenskabe<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Eksempel_15_meter_rundt_om_et_rum\" >Eksempel: 15 meter rundt om et rum<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Controllerens_stroemkapacitet\" >Controllerens str\u00f8mkapacitet<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Samme_watt_%E2%80%93_samme_energiforbrug\" >Samme watt \u2013 samme energiforbrug<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Kan_man_koble_12V_strips_i_serie_til_24V\" >Kan man koble 12V strips i serie til 24V?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Driverens_placering\" >Driverens placering<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Daempning_og_PWM-frekvens\" >D\u00e6mpning og PWM-frekvens<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Koebstjekliste\" >K\u00f8bstjekliste<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Relaterede_guides_til_dimensionering_af_LED_strips\" >Relaterede guides til dimensionering af LED strips<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#FAQ\" >FAQ<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Lyser_24V_kraftigere_end_12V\" >Lyser 24V kraftigere end 12V?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Bruger_24V_mindre_stroem\" >Bruger 24V mindre str\u00f8m?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Kan_jeg_bruge_en_24V_driver_paa_en_12V_strip\" >Kan jeg bruge en 24V driver p\u00e5 en 12V strip?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-blog\/12v-vs-24v-led-strips\/#Er_24V_altid_bedst\" >Er 24V altid bedst?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Hvorfor_findes_LED_strips_i_forskellige_spaendinger\"><\/span>Hvorfor findes LED strips i forskellige sp\u00e6ndinger?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>LED strips best\u00e5r af sm\u00e5 seriekoblede LED-segmenter. Konstruktionen bestemmer, hvilken forsyningssp\u00e6nding strippen kr\u00e6ver. Str\u00f8mforsyningen skal altid matche strippen pr\u00e6cist.<\/p>\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1942\" height=\"809\" src=\"https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-opsaetning.webp\" alt=\"12V og 24V LED strips med forskellige str\u00f8mforsyninger\" class=\"wp-image-23202\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-opsaetning.webp 1942w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-opsaetning-300x125.webp 300w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-opsaetning-1024x427.webp 1024w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-opsaetning-768x320.webp 768w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-opsaetning-1536x640.webp 1536w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-opsaetning-18x7.webp 18w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-opsaetning-500x208.webp 500w\" sizes=\"auto, (max-width: 1942px) 100vw, 1942px\" \/><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Den_elektriske_forskel\"><\/span>Den elektriske forskel<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Effekt beregnes som sp\u00e6nding gange str\u00f8m. En 120 W installation tr\u00e6kker omtrent 10 A ved 12 V, men kun 5 A ved 24 V. Den lavere str\u00f8m ved 24 V betyder mindre tab i kabler og kobberbaner.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Spaendingsfald\"><\/span>Sp\u00e6ndingsfald<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Sp\u00e6ndingsfald viser sig typisk ved, at LED strippen bliver svagere eller \u00e6ndrer farve mod enden. Problemet \u00f8ges med l\u00e6ngde, str\u00f8m og tynde kabler. 24 V er derfor ofte lettere at arbejde med p\u00e5 l\u00e6ngere installationer.<\/p>\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1942\" height=\"809\" src=\"https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-sammenligning-af-spaending.webp\" alt=\"Illustration af forskelle mellem 12V og 24V LED strips\" class=\"wp-image-23203\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-sammenligning-af-spaending.webp 1942w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-sammenligning-af-spaending-300x125.webp 300w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-sammenligning-af-spaending-1024x427.webp 1024w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-sammenligning-af-spaending-768x320.webp 768w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-sammenligning-af-spaending-1536x640.webp 1536w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-sammenligning-af-spaending-18x7.webp 18w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-sammenligning-af-spaending-500x208.webp 500w\" sizes=\"auto, (max-width: 1942px) 100vw, 1942px\" \/><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Hvornaar_skal_du_vaelge_12V\"><\/span>Hvorn\u00e5r skal du v\u00e6lge 12V?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>Korte str\u00e6k<\/li>\n<li>Eksisterende 12 V installationer<\/li>\n<li>Bil, camping eller andre 12 V systemer<\/li>\n<li>Produkter, der kun findes i 12 V udgave<\/li>\n<\/ul>\n<p>Se ogs\u00e5 <a href=\"https:\/\/www.sunflux.dk\/da\/12v-trafo\">12V LED-drivere<\/a>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Hvornaar_skal_du_vaelge_24V\"><\/span>Hvorn\u00e5r skal du v\u00e6lge 24V?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>L\u00e6ngere LED-strip forl\u00f8b<\/li>\n<li>H\u00f8jere samlet effekt<\/li>\n<li>M\u00f8bel-, k\u00f8kken- og erhvervsinstallationer<\/li>\n<li>Installationer med flere parallelle str\u00e6k<\/li>\n<\/ul>\n<p>Se <a href=\"https:\/\/www.sunflux.dk\/da\/24v-trafo\">24V LED-drivere<\/a>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Hvor_langt_kan_en_strip_vaere\"><\/span>Hvor langt kan \u00e9n strip v\u00e6re?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Der findes ikke \u00e9n universel maksimuml\u00e6ngde. Den afh\u00e6nger af kobberbaner, watt pr. meter og produktets konstruktion. F\u00f8lg altid producentens angivne maksimale l\u00e6ngde. Ved lange installationer b\u00f8r str\u00f8m ofte tilf\u00f8res flere steder.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Stroemforsyning_og_reserve\"><\/span>Str\u00f8mforsyning og reserve<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Beregn samlet effekt som watt pr. meter \u00d7 antal meter. V\u00e6lg derefter en str\u00f8mforsyning med passende reserve. En 5 meter strip p\u00e5 14,4 W\/m bruger 72 W. En driver omkring 80-90 W eller mere kan v\u00e6re passende afh\u00e6ngigt af producentens krav og driftsmilj\u00f8.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Kan_12V_og_24V_blandes\"><\/span>Kan 12V og 24V blandes?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Ikke direkte. En 12 V strip m\u00e5 ikke forsynes med 24 V. Hvis et projekt har begge sp\u00e6ndinger, skal de have separate, korrekte str\u00f8mforsyninger eller konvertering.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Daempning\"><\/span>D\u00e6mpning<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>B\u00e5de 12 V og 24 V strips kan normalt d\u00e6mpes via PWM med en kompatibel controller. Controllerens sp\u00e6ndingsomr\u00e5de og str\u00f8mkapacitet skal passe til installationen.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Kabeldimension_betyder_noget\"><\/span>Kabeldimension betyder noget<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Lav sp\u00e6nding kan give h\u00f8j str\u00f8m. Derfor skal kabler dimensioneres efter str\u00f8m, l\u00e6ngde og tilladt sp\u00e6ndingsfald. Et for tyndt kabel kan give m\u00e6rkbart lysfald og un\u00f8dig varme.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Hvorfor_bliver_stroemmen_halveret_ved_24V\"><\/span>Hvorfor bliver str\u00f8mmen halveret ved 24V?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Effekt er sp\u00e6nding gange str\u00f8m: <strong>P = U \u00d7 I<\/strong>. Hvis en LED-strip installation bruger 120 W, bliver str\u00f8mmen omtrent:<\/p>\n<ul>\n<li>120 W \/ 12 V = 10 A<\/li>\n<li>120 W \/ 24 V = 5 A<\/li>\n<\/ul>\n<p>Den lavere str\u00f8m ved 24 V betyder mindre sp\u00e6ndingsfald i kabler og kobberbaner og g\u00f8r det lettere at dimensionere controllere og stik.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Spaendingsfald_%E2%80%93_praktisk_eksempel\"><\/span>Sp\u00e6ndingsfald \u2013 praktisk eksempel<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Forestil dig 10 meter LED strip p\u00e5 14,4 W\/m. Den samlede effekt er 144 W. Ved 12 V svarer det til cirka 12 A, mens det ved 24 V svarer til cirka 6 A.<\/p>\n<p>Hvis hele str\u00f8mmen f\u00f8res gennem strippen fra \u00e9n ende, vil sp\u00e6ndingsfaldet blive betydeligt, is\u00e6r ved 12 V. Derfor b\u00f8r lange str\u00e6k opdeles eller str\u00f8mforsynes fra flere punkter.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"12V_giver_kortere_segmenter\"><\/span>12V giver kortere segmenter<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>En fordel ved 12 V strips er ofte kortere klippeintervaller. Det kan v\u00e6re nyttigt i m\u00f8bler og nicher, hvor strippen skal tilpasses meget pr\u00e6cist. 24 V strips har typisk l\u00e6ngere segmenter, fordi flere LED&#8217;er kobles i serie.<\/p>\n<p>Det varierer dog mellem produkter, s\u00e5 kontroller altid klippem\u00e6rkerne.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"24V_til_professionelle_installationer\"><\/span>24V til professionelle installationer<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Til l\u00e6ngere k\u00f8kkenforl\u00f8b, reoler, butikker og arkitektonisk lys v\u00e6lger man ofte 24 V. Det skyldes ikke, at 24 V giver bedre lys i sig selv, men at str\u00f8mfordelingen bliver lettere.<\/p>\n<p>Ved meget lange installationer kan 48 V eller constant-current l\u00f8sninger ogs\u00e5 forekomme, men 24 V er i praksis meget udbredt i LED-strip projekter.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Kabeldimension\"><\/span>Kabeldimension<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Selv om str\u00f8mmen ved 24 V er lavere, kan lange kabler stadig give sp\u00e6ndingsfald. Kabeltv\u00e6rsnittet skal v\u00e6lges efter str\u00f8m og l\u00e6ngde. Hvis str\u00f8mforsyningen st\u00e5r langt fra strippen, er det ofte bedre at f\u00f8re et kraftigere kabel frem til et lokalt fordelingspunkt.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Eksempel_3_meter_under_koekkenskabe\"><\/span>Eksempel: 3 meter under k\u00f8kkenskabe<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Tre meter strip p\u00e5 10 W\/m bruger 30 W. Her kan b\u00e5de 12 V og 24 V fungere fint. Hvis installationen allerede har en 12 V driver, kan der v\u00e6re lille grund til at skifte. Ved ny installation vil 24 V dog ofte give mere fleksibilitet til senere udvidelse.<\/p>\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1672\" height=\"941\" src=\"https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-lys-i-koekken.webp\" alt=\"Sammenligning af 12V og 24V LED strips i k\u00f8kken\" class=\"wp-image-23201\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-lys-i-koekken.webp 1672w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-lys-i-koekken-300x169.webp 300w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-lys-i-koekken-1024x576.webp 1024w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-lys-i-koekken-768x432.webp 768w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-lys-i-koekken-1536x864.webp 1536w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-lys-i-koekken-18x10.webp 18w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-lys-i-koekken-800x450.webp 800w, https:\/\/www.sunflux.dk\/wp-content\/uploads\/2026\/09\/12v-vs-24v-led-strips-12v-24v-lys-i-koekken-500x281.webp 500w\" sizes=\"auto, (max-width: 1672px) 100vw, 1672px\" \/><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Eksempel_15_meter_rundt_om_et_rum\"><\/span>Eksempel: 15 meter rundt om et rum<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Her b\u00f8r du ikke blot forbinde \u00e9n 15 meter strip fra \u00e9n ende. Del installationen i sektioner og f\u00f8r str\u00f8m til flere punkter. 24 V vil normalt v\u00e6re mere praktisk end 12 V.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Controllerens_stroemkapacitet\"><\/span>Controllerens str\u00f8mkapacitet<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>En RGBW-controller kan eksempelvis v\u00e6re m\u00e6rket 4 \u00d7 5 A. Det betyder ikke n\u00f8dvendigvis 20 A kontinuerligt i alle situationer; totalgr\u00e6nsen skal ogs\u00e5 kontrolleres. Ved 12 V rammer man str\u00f8mgr\u00e6nser hurtigere end ved 24 V.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Samme_watt_%E2%80%93_samme_energiforbrug\"><\/span>Samme watt \u2013 samme energiforbrug<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>En 100 W strip-installation bruger omtrent samme energi, uanset om den er 12 V eller 24 V. 24 V er alts\u00e5 ikke automatisk mere energibesparende. Fordelen er prim\u00e6rt elektrisk distribution og lavere str\u00f8m.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Kan_man_koble_12V_strips_i_serie_til_24V\"><\/span>Kan man koble 12V strips i serie til 24V?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Det b\u00f8r man normalt ikke g\u00f8re som en hjemmelavet l\u00f8sning. LED strips er designet til en bestemt forsyning og segmentstruktur. Brug en strip, der er konstrueret til den \u00f8nskede sp\u00e6nding.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Driverens_placering\"><\/span>Driverens placering<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Lavvoltledningen fra driver til strip b\u00f8r ikke v\u00e6re un\u00f8digt lang. Hvis driveren kan placeres t\u00e6ttere p\u00e5 belastningen og stadig have god ventilation og serviceadgang, reduceres kabeltab.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Daempning_og_PWM-frekvens\"><\/span>D\u00e6mpning og PWM-frekvens<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>B\u00e5de 12 V og 24 V strips d\u00e6mpes normalt via PWM. S\u00f8rg for, at controlleren underst\u00f8tter den valgte sp\u00e6nding og den samlede str\u00f8m. Til kamera- eller videomilj\u00f8er kan en h\u00f8j PWM-frekvens v\u00e6re vigtig for at undg\u00e5 synligt flimmer i optagelser.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Koebstjekliste\"><\/span>K\u00f8bstjekliste<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>Hvor lang er den samlede strip?<\/li>\n<li>Watt pr. meter?<\/li>\n<li>Samlet effekt?<\/li>\n<li>Hvor mange str\u00f8mtilf\u00f8rselspunkter?<\/li>\n<li>12 V eller 24 V driver?<\/li>\n<li>Controllerens str\u00f8mgr\u00e6nse?<\/li>\n<li>Kabell\u00e6ngde og tv\u00e6rsnit?<\/li>\n<li>Klippel\u00e6ngde?<\/li>\n<li>Behov for d\u00e6mpning eller RGB?<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Relaterede_guides_til_dimensionering_af_LED_strips\"><\/span>Relaterede guides til dimensionering af LED strips<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>N\u00e5r sp\u00e6ndingen er valgt, er n\u00e6ste skridt at v\u00e6lge den rigtige str\u00f8mforsyning. Se derfor <a href=\"https:\/\/www.sunflux.dk\/da\/blog\/saadan-vaelger-du-led-driver-12v-24v-konstant-stroem\">guiden til LED-driver<\/a>. Hvis du samtidig overvejer lyskvalitet og punktfri lyslinje, s\u00e5 sammenlign <a href=\"https:\/\/www.sunflux.dk\/da\/blog\/cob-led-strip-vs-almindelig-led-strip\">COB og almindelig LED strip<\/a>.<\/p>\n<p>Ved d\u00e6mpning og styring b\u00f8r du ogs\u00e5 l\u00e6se <a href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-daempning-fase-pwm-1-10v-dali\">guiden til LED-d\u00e6mpning<\/a>. For beregning af effekt og energiforbrug findes desuden den eksisterende guide <a href=\"https:\/\/www.sunflux.dk\/da\/blog\/led-strips-energiforbrug\">LED strips og deres str\u00f8mforbrug<\/a>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Lyser_24V_kraftigere_end_12V\"><\/span>Lyser 24V kraftigere end 12V?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ikke n\u00f8dvendigvis. Lysstyrken bestemmes af den konkrete strip, ikke sp\u00e6ndingen alene.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Bruger_24V_mindre_stroem\"><\/span>Bruger 24V mindre str\u00f8m?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ved samme effekt bruger 24 V lavere str\u00f8m i ampere end 12 V, men energiforbruget i watt kan v\u00e6re det samme.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Kan_jeg_bruge_en_24V_driver_paa_en_12V_strip\"><\/span>Kan jeg bruge en 24V driver p\u00e5 en 12V strip?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Nej.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Er_24V_altid_bedst\"><\/span>Er 24V altid bedst?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Nej. 12 V er fint til korte og eksisterende 12 V systemer. 24 V er ofte mere praktisk ved l\u00e6ngere og kraftigere installationer.<\/p>\n<p><strong>Faglig note:<\/strong> Til l\u00e6ngere LED-strip projekter b\u00f8r sp\u00e6ndingsfald beregnes, og str\u00f8m b\u00f8r eventuelt indf\u00f8des flere steder. Dimension\u00e9r b\u00e5de driver, controller og kabel efter den samlede belastning.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Guide til forskellen mellem 12V og 24V LED strips med fokus p\u00e5 sp\u00e6ndingsfald, l\u00e6ngde, str\u00f8m, driver, kabeldimension, d\u00e6mpning og praktisk anvendelse.<\/p>\n","protected":false},"author":1,"featured_media":23200,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"ocean_front_end_style_editor":"no","ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"","ocean_custom_header_template":"","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"on","ocean_gallery_id":[],"footnotes":""},"categories":[1577],"tags":[],"class_list":["post-23106","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-led-strips-blog","entry","has-media","owp-thumbs-layout-horizontal","owp-btn-normal","owp-tabs-layout-horizontal","has-no-thumbnails","has-product-nav"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.sunflux.dk\/da\/wp-json\/wp\/v2\/posts\/23106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sunflux.dk\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sunflux.dk\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sunflux.dk\/da\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sunflux.dk\/da\/wp-json\/wp\/v2\/comments?post=23106"}],"version-history":[{"count":0,"href":"https:\/\/www.sunflux.dk\/da\/wp-json\/wp\/v2\/posts\/23106\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sunflux.dk\/da\/wp-json\/wp\/v2\/media\/23200"}],"wp:attachment":[{"href":"https:\/\/www.sunflux.dk\/da\/wp-json\/wp\/v2\/media?parent=23106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sunflux.dk\/da\/wp-json\/wp\/v2\/categories?post=23106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sunflux.dk\/da\/wp-json\/wp\/v2\/tags?post=23106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}