{"id":2767,"date":"2026-04-07T01:52:54","date_gmt":"2026-04-07T01:52:54","guid":{"rendered":"https:\/\/neonledstrip.com\/?p=2767"},"modified":"2026-04-07T01:52:55","modified_gmt":"2026-04-07T01:52:55","slug":"led-strip-not-working-after-cutting","status":"publish","type":"post","link":"https:\/\/neonledstrip.com\/pt\/led-strip-not-working-after-cutting\/","title":{"rendered":"A fita LED n\u00e3o funciona depois de cortada? Porqu\u00ea e como resolver o problema?"},"content":{"rendered":"<p>LED light strips are energy-efficient, can be cut, and are easy to install, while also supporting custom sizes. However, many users may encounter a common problem during installation\u2014the LED light strip doesn&#8217;t working after cutting. So what exactly causes this phenomenon? In this article, we will analyze the reasons for this problem in detail and provide relevant solutions to help you easily solve this issue. More details, pls read <a href=\"https:\/\/neonledstrip.com\/pt\/como-funcionam-as-fitas-de-led\/\" target=\"_blank\" rel=\"noreferrer noopener\">Como funcionam as fitas de LED?<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-why-can-led-strip-lights-only-be-cut-at-specific-locations\">Porque \u00e9 que as fitas LED s\u00f3 podem ser cortadas em locais espec\u00edficos?<\/h2>\n\n\n\n<p>LED strips cannot be arbitrarily cut; the circuit board for each LED is pre-designed. If you look closely at the light strip, you&#8217;ll see a pair of copper contact points marked with a scissor icon at short intervals. These are the designated cutting points; you can only cut at these locations.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/neonledstrip.com\/wp-content\/uploads\/2026\/04\/led-strip-not-working-after-cutting.webp\" alt=\"A fita LED n\u00e3o funciona ap\u00f3s o corte, apresentando uma liga\u00e7\u00e3o interrompida e uma sec\u00e7\u00e3o apagada\" class=\"wp-image-3376\" srcset=\"https:\/\/neonledstrip.com\/wp-content\/uploads\/2026\/04\/led-strip-not-working-after-cutting.webp 800w, https:\/\/neonledstrip.com\/wp-content\/uploads\/2026\/04\/led-strip-not-working-after-cutting-300x188.webp 300w, https:\/\/neonledstrip.com\/wp-content\/uploads\/2026\/04\/led-strip-not-working-after-cutting-768x480.webp 768w, https:\/\/neonledstrip.com\/wp-content\/uploads\/2026\/04\/led-strip-not-working-after-cutting-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>O princ\u00edpio subjacente \u00e9 o circuito paralelo. Uma tira de luz LED \u00e9 composta por v\u00e1rias unidades emissoras de luz independentes ligadas em s\u00e9rie e em paralelo. Cada ponto de corte representa o fim de uma unidade de circuito completa e o in\u00edcio da seguinte. Dentro de cada unidade, os LEDs e as resist\u00eancias est\u00e3o ligados em s\u00e9rie, enquanto as pr\u00f3prias unidades est\u00e3o ligadas em paralelo.<\/p>\n\n\n\n<p>Quando se corta no ponto correto, apenas se separa uma unidade paralela completa do circuito global sem afetar o percurso da corrente dentro dessa unidade. \u00c9 por isso que a parte restante e a parte cortada podem funcionar de forma independente.<\/p>\n\n\n\n<p>Por outro lado, se cortar no s\u00edtio errado, ir\u00e1 perturbar o circuito dessa unidade, fazendo com que essa unidade e todas as unidades subsequentes deixem de acender.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-common-reasons-why-led-strip-don-t-working-after-cutting\">Common Reasons Why LED Strip Don&#8217;t Working After Cutting<\/h2>\n\n\n\n<p>As tiras de LED padr\u00e3o t\u00eam 5 metros\/rolo, pelo que \u00e9 necess\u00e1rio cortar durante a instala\u00e7\u00e3o. Naturalmente, algumas s\u00e3o feitas por medida. Ao cortar, preste muita aten\u00e7\u00e3o ao local do corte. Aqui est\u00e3o os cinco principais culpados que fazem com que a fita LED n\u00e3o funcione ap\u00f3s o corte.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-incorrect-cutting-position\">Posi\u00e7\u00e3o de corte incorrecta<\/h3>\n\n\n\n<p>This is the most common reason why LED strips won&#8217;t light up after being cut. As mentioned earlier, the cut must be made precisely in the middle of the copper pads marked with scissors.<\/p>\n\n\n\n<p>If you cut anywhere else between the two pads, it&#8217;s equivalent to severing the delicate FPC (Flexible Printed Circuit) wiring inside the strip. Current cannot flow, and naturally, it won&#8217;t light up.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-reversed-positive-and-negative-terminals\">Terminais positivos e negativos invertidos<\/h3>\n\n\n\n<p>LED significa Light Emitting Diode (D\u00edodo Emissor de Luz) e a sua carater\u00edstica principal \u00e9 a condutividade unidirecional. A corrente s\u00f3 pode fluir para dentro a partir do terminal positivo (+) e para fora a partir do terminal negativo (-).<\/p>\n\n\n\n<p>Quando <a href=\"https:\/\/neonledstrip.com\/pt\/como-cortar-e-soldar-led-neon-flex\/\" type=\"post\" id=\"2183\" target=\"_blank\" rel=\"noreferrer noopener\">cortar uma fita LED<\/a>, \u00e9 necess\u00e1rio voltar a acend\u00ea-la. Se inverter os terminais positivo e negativo quando voltar a ligar a tira cortada, a tira n\u00e3o se acender\u00e1 de todo.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-damaged-or-cold-solder-joints\">Juntas de solda danificadas ou frias<\/h3>\n\n\n\n<p>Se optar por ligar a tira de LEDs utilizando solda, \u00e9 necess\u00e1rio um certo n\u00edvel de per\u00edcia de soldadura. Juntas de solda frias (a solda n\u00e3o faz um bom contacto com as almofadas e os fios) ou curtos-circuitos (excesso de solda que faz com que os terminais positivo e negativo se liguem) far\u00e3o com que a tira de LED n\u00e3o acenda.<\/p>\n\n\n\n<p>Al\u00e9m disso, a utiliza\u00e7\u00e3o de um ferro de soldar sobreaquecido ou a sua manuten\u00e7\u00e3o durante demasiado tempo pode danificar as fr\u00e1geis almofadas de cobre, fazendo com que se soltem do substrato flex\u00edvel.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-led-strip-voltage-mismatch\">Incompatibilidade de tens\u00e3o da fita LED<\/h3>\n\n\n\n<p>As tiras de LED funcionam com tens\u00f5es diferentes, normalmente 12V e 24V. Estas nunca devem ser misturadas. Se ligar uma fita de 12V a uma fonte de alimenta\u00e7\u00e3o de 24V, os LEDs queimar-se-\u00e3o instantaneamente devido \u00e0 tens\u00e3o excessiva.<\/p>\n\n\n\n<p>Pelo contr\u00e1rio, ligar uma tira de 24V a uma fonte de alimenta\u00e7\u00e3o de 12V far\u00e1 com que a tira n\u00e3o arranque ou tenha um brilho extremamente baixo.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-led-strip-damage-or-circuit-board-breakage\">Danos na fita LED ou quebra da placa de circuito<\/h3>\n\n\n\n<p>Sometimes the problem isn&#8217;t with your handling. The LED strip itself may have suffered physical damage during shipping or installation, such as tiny cracks in the FPC circuit board that are difficult to see with the naked eye.<\/p>\n\n\n\n<p>It&#8217;s also possible that excessive force was used during installation or cutting. This can damage adjacent solder pads and cause the LED strip to fail to light up.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-to-properly-cut-led-strips\">Como cortar corretamente as fitas de LED?<\/h2>\n\n\n\n<p>Dominar o m\u00e9todo de corte correto \u00e9 fundamental para garantir o bom funcionamento das tiras de LED. O corte das tiras de LED \u00e9 geralmente necess\u00e1rio.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Como cortar, soldar e ligar a fita LED COB\" width=\"720\" height=\"405\" src=\"https:\/\/www.youtube.com\/embed\/y2lZQs4lfg8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-step-1-power-off-operation\">Passo 1: Opera\u00e7\u00e3o de desligar<\/h3>\n\n\n\n<p>Antes de cortar a fita LED, desligue sempre a alimenta\u00e7\u00e3o el\u00e9ctrica. Certifique-se de que a tira est\u00e1 completamente desligada. Cortar com o circuito sob tens\u00e3o n\u00e3o s\u00f3 \u00e9 perigoso como tamb\u00e9m pode danificar a tira devido a um curto-circuito moment\u00e2neo.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-step-2-precise-positioning\">Passo 2: Posicionamento preciso<\/h3>\n\n\n\n<p>Lay the LED strip flat on the work surface and carefully locate the cutting marks using sufficient light. These marks are usually indicated by a scissor icon, dotted lines, or the word &#8220;CUT HERE,&#8221; and are fixed in the center between the two copper foil pads.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-step-3-tool-selection\">Passo 3: Sele\u00e7\u00e3o da ferramenta<\/h3>\n\n\n\n<p>Para cortar, \u00e9 necess\u00e1rio utilizar uma tesoura afiada ou uma faca de cozinha. As ferramentas pouco afiadas comprimem a placa de circuitos, podendo provocar a deforma\u00e7\u00e3o ou mesmo a quebra da folha de cobre interna. Recomenda-se aos utilizadores profissionais que utilizem tesouras espec\u00edficas para componentes electr\u00f3nicos para um corte mais limpo.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-step-4-vertical-cutting\">Etapa 4: Corte vertical<\/h3>\n\n\n\n<p>Manter a l\u00e2mina perpendicular \u00e0 superf\u00edcie da fita luminosa e efetuar um corte \u00fanico e r\u00e1pido; evitar cortes repetidos ou em \u00e2ngulo. A extremidade cortada deve ser limpa e lisa, sem rebarbas ou detritos de pl\u00e1stico rasgados.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-step-5-inspect-the-cut\">Etapa 5: Inspecionar o corte<\/h3>\n\n\n\n<p>Imediatamente ap\u00f3s o corte, inspecionar ambas as extremidades do corte para garantir que as almofadas de folha de cobre est\u00e3o totalmente expostas. A superf\u00edcie das almofadas deve ser lisa e plana, sem qualquer res\u00edduo de pl\u00e1stico; isto \u00e9 crucial para as liga\u00e7\u00f5es subsequentes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-step-6-protective-treatment\">Etapa 6: Tratamento de prote\u00e7\u00e3o<\/h3>\n\n\n\n<p>Se a extremidade cortada da fita LED n\u00e3o for utilizada imediatamente, recomenda-se que envolva os pontos de soldadura com fita el\u00e9ctrica para evitar a entrada de p\u00f3 e humidade ou para evitar curto-circuitos acidentais.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-summary\">Resumo<\/h2>\n\n\n\n<p>O corte correto das fitas luminosas LED \u00e9 essencial para garantir o seu bom funcionamento posterior. Esperamos que tenha agora uma compreens\u00e3o abrangente do funcionamento das fitas LED, das t\u00e9cnicas de corte e da resolu\u00e7\u00e3o de problemas. Passou de uma compreens\u00e3o <em>porqu\u00ea<\/em> podem ser cortados para saber como evitar as armadilhas que os causam <em>n\u00e3o<\/em> para iluminar. Se precisar de fitas de luz LED ou de <a href=\"https:\/\/neonledstrip.com\/pt\/fita-de-neon\/\" type=\"link\" id=\"https:\/\/neonledstrip.com\/neon-strip\/\" target=\"_blank\" rel=\"noreferrer noopener\">neon flex<\/a>, N\u00e3o hesite em contactar-nos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-faqs\">Perguntas frequentes<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1762571454062\"><strong class=\"schema-faq-question\">Como \u00e9 que se distingue entre tiras de luz LED de 12V e 24V?<\/strong> <p class=\"schema-faq-answer\">It is quite easy to distinguish between them; you can check the information printed on the packaging or look for the labels &#8220;DC12V&#8221; or &#8220;DC24V&#8221; clearly printed directly on the LED strip&#8217;s PCB board.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1762571455076\"><strong class=\"schema-faq-question\">Um segmento muito curto de uma fita LED pode continuar a ser utilizado de forma independente depois de cortado?<\/strong> <p class=\"schema-faq-answer\">Sim, pode. Desde que corte no local correto e possa fornecer uma fonte de alimenta\u00e7\u00e3o compat\u00edvel - atrav\u00e9s de soldadura ou utilizando um conetor miniatura - qualquer segmento da faixa de luz que seja mais longo do que uma \u00fanica unidade de corte pode funcionar de forma independente.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1762571455742\"><strong class=\"schema-faq-question\">As fitas de luz LED podem ser cortadas em qualquer s\u00edtio?<\/strong> <p class=\"schema-faq-answer\">N\u00e3o, as fitas de luz LED s\u00f3 podem ser cortadas em locais espec\u00edficos. Deve seguir as linhas de corte designadas e marcadas na fita. Um corte incorreto pode impedir que a tira de luz funcione corretamente ou resultar em danos no circuito. Cada fita luminosa apresenta pontos de corte pr\u00e9-desenhados.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1762571456283\"><strong class=\"schema-faq-question\">Why won&#8217;t an LED strip light up after being cut?<\/strong> <p class=\"schema-faq-answer\">Existem v\u00e1rias raz\u00f5es poss\u00edveis. As raz\u00f5es pelas quais uma fita LED pode n\u00e3o acender depois de ser cortada incluem: corte no local errado, invers\u00e3o da polaridade positiva e negativa, juntas de soldadura danificadas, uma diferen\u00e7a de tens\u00e3o entre a fita e a fonte de alimenta\u00e7\u00e3o ou danos na placa de circuitos.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1762571457534\"><strong class=\"schema-faq-question\">O corte de uma fita LED afecta o seu brilho ou desempenho de cor?<\/strong> <p class=\"schema-faq-answer\">Se o corte for efectuado no local correto e os circuitos n\u00e3o forem danificados, a luminosidade e o desempenho da cor da fita LED n\u00e3o ser\u00e3o afectados. De um modo geral, o corte da tira n\u00e3o altera o seu efeito de ilumina\u00e7\u00e3o ou a sua cor.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>LED light strips are energy-efficient, can be cut, and are easy to install, while also supporting custom sizes. However, many&#8230;<\/p>","protected":false},"author":1,"featured_media":3376,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[13],"tags":[316,318,317],"class_list":["post-2767","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-cut-led-strip-not-working","tag-how-to-cut-led-strip","tag-led-strip-repair"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.0 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>LED Strip Not Working After Cutting? Causes &amp; Easy Fixes - Neon LED Strip<\/title>\n<meta name=\"description\" content=\"Properly cutting LED strip is essential to ensure they working correctly. We trust that you now have a comprehensive understanding.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/neonledstrip.com\/pt\/led-strip-not-working-after-cutting\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LED Strip Not Working After Cutting? Here\u2019s Why and How to Fix It?\" \/>\n<meta property=\"og:description\" content=\"Properly cutting LED strip is essential to ensure they working correctly. We trust that you now have a comprehensive understanding.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/neonledstrip.com\/pt\/led-strip-not-working-after-cutting\/\" \/>\n<meta property=\"og:site_name\" content=\"Neon LED Strip\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-07T01:52:54+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-07T01:52:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/neonledstrip.com\/wp-content\/uploads\/2026\/04\/led-strip-not-working-after-cutting.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"sales@neonledstrip.com\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"sales@neonledstrip.com\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/\"},\"author\":{\"name\":\"sales@neonledstrip.com\",\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/#\\\/schema\\\/person\\\/3f06332039988429eff0a4c797dad6fe\"},\"headline\":\"LED Strip Not Working After Cutting? Here\u2019s Why and How to Fix It?\",\"datePublished\":\"2026-04-07T01:52:54+00:00\",\"dateModified\":\"2026-04-07T01:52:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/\"},\"wordCount\":1339,\"commentCount\":1,\"publisher\":{\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/neonledstrip.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/led-strip-not-working-after-cutting.webp\",\"keywords\":[\"cut LED strip not working\",\"how to cut LED strip\",\"LED strip repair\"],\"articleSection\":[\"blog\"],\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#respond\"]}]},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/\",\"url\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/\",\"name\":\"LED Strip Not Working After Cutting? Causes & Easy Fixes - Neon LED Strip\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/neonledstrip.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/led-strip-not-working-after-cutting.webp\",\"datePublished\":\"2026-04-07T01:52:54+00:00\",\"dateModified\":\"2026-04-07T01:52:55+00:00\",\"description\":\"Properly cutting LED strip is essential to ensure they working correctly. We trust that you now have a comprehensive understanding.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#breadcrumb\"},\"mainEntity\":[{\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#faq-question-1762571454062\"},{\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#faq-question-1762571455076\"},{\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#faq-question-1762571455742\"},{\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#faq-question-1762571456283\"},{\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#faq-question-1762571457534\"}],\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-PT\",\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#primaryimage\",\"url\":\"https:\\\/\\\/neonledstrip.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/led-strip-not-working-after-cutting.webp\",\"contentUrl\":\"https:\\\/\\\/neonledstrip.com\\\/wp-content\\\/uploads\\\/2026\\\/04\\\/led-strip-not-working-after-cutting.webp\",\"width\":800,\"height\":500,\"caption\":\"LED strip not working after cutting showing broken connection and unlit section\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/neonledstrip.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"LED Strip Not Working After Cutting? Here\u2019s Why and How to Fix It?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/#website\",\"url\":\"https:\\\/\\\/neonledstrip.com\\\/\",\"name\":\"Neon LED Strip\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/neonledstrip.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"pt-PT\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/#organization\",\"name\":\"Neon LED Strip\",\"url\":\"https:\\\/\\\/neonledstrip.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-PT\",\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/neonledstrip.com\\\/wp-content\\\/uploads\\\/2023\\\/03\\\/LOGO.jpg\",\"contentUrl\":\"https:\\\/\\\/neonledstrip.com\\\/wp-content\\\/uploads\\\/2023\\\/03\\\/LOGO.jpg\",\"width\":646,\"height\":228,\"caption\":\"Neon LED Strip\"},\"image\":{\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/#\\\/schema\\\/person\\\/3f06332039988429eff0a4c797dad6fe\",\"name\":\"sales@neonledstrip.com\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-PT\",\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/wp-content\\\/litespeed\\\/avatar\\\/a7487ba5e9b7269c4a26c927df3706ed.jpg?ver=1778041667\",\"url\":\"https:\\\/\\\/neonledstrip.com\\\/wp-content\\\/litespeed\\\/avatar\\\/a7487ba5e9b7269c4a26c927df3706ed.jpg?ver=1778041667\",\"contentUrl\":\"https:\\\/\\\/neonledstrip.com\\\/wp-content\\\/litespeed\\\/avatar\\\/a7487ba5e9b7269c4a26c927df3706ed.jpg?ver=1778041667\",\"caption\":\"sales@neonledstrip.com\"},\"sameAs\":[\"https:\\\/\\\/neonledstrip.com\"],\"url\":\"https:\\\/\\\/neonledstrip.com\\\/pt\\\/author\\\/salesneonledstrip-com\\\/\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#faq-question-1762571454062\",\"position\":1,\"url\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#faq-question-1762571454062\",\"name\":\"How do you distinguish between 12V and 24V LED light strips?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is quite easy to distinguish between them; you can check the information printed on the packaging or look for the labels \\\"DC12V\\\" or \\\"DC24V\\\" clearly printed directly on the LED strip's PCB board.\",\"inLanguage\":\"pt-PT\"},\"inLanguage\":\"pt-PT\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#faq-question-1762571455076\",\"position\":2,\"url\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#faq-question-1762571455076\",\"name\":\"Can a very short segment of an LED strip still be used independently after being cut?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, it can. Provided that you cut at the correct location and can supply a compatible power source\u2014either through soldering or using a miniature connector\u2014any segment of the light strip that is longer than a single cutting unit can function independently.\",\"inLanguage\":\"pt-PT\"},\"inLanguage\":\"pt-PT\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#faq-question-1762571455742\",\"position\":3,\"url\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#faq-question-1762571455742\",\"name\":\"Can LED light strips be cut anywhere?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, LED light strips can only be cut at specific locations. You must follow the designated cutting lines marked on the strip. Improper cutting may prevent the light strip from functioning correctly or result in circuit damage. Each light strip features pre-designed cutting points.\",\"inLanguage\":\"pt-PT\"},\"inLanguage\":\"pt-PT\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#faq-question-1762571456283\",\"position\":4,\"url\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#faq-question-1762571456283\",\"name\":\"Why won't an LED strip light up after being cut?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"There are several possible reasons. The reasons why an LED strip might fail to light up after being cut include: cutting at the wrong location, reversing the positive and negative polarity, damaged solder joints, a voltage mismatch between the strip and the power supply, or damage to the circuit board.\",\"inLanguage\":\"pt-PT\"},\"inLanguage\":\"pt-PT\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#faq-question-1762571457534\",\"position\":5,\"url\":\"https:\\\/\\\/neonledstrip.com\\\/led-strip-not-working-after-cutting\\\/#faq-question-1762571457534\",\"name\":\"Does cutting an LED strip affect its brightness or color performance?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"If the cut is made at the correct location and the circuitry remains undamaged, the brightness and color performance of the LED strip will not be affected. Generally speaking, cutting the strip will not change its lighting effect or colour output.\",\"inLanguage\":\"pt-PT\"},\"inLanguage\":\"pt-PT\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"A fita LED n\u00e3o funciona depois de cortada? Causas e solu\u00e7\u00f5es f\u00e1ceis - Fita LED Neon","description":"O corte adequado das fitas LED \u00e9 essencial para garantir o seu correto funcionamento. Esperamos que agora tenha uma compreens\u00e3o abrangente.","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:\/\/neonledstrip.com\/pt\/led-strip-not-working-after-cutting\/","og_locale":"pt_PT","og_type":"article","og_title":"LED Strip Not Working After Cutting? Here\u2019s Why and How to Fix It?","og_description":"Properly cutting LED strip is essential to ensure they working correctly. We trust that you now have a comprehensive understanding.","og_url":"https:\/\/neonledstrip.com\/pt\/led-strip-not-working-after-cutting\/","og_site_name":"Neon LED Strip","article_published_time":"2026-04-07T01:52:54+00:00","article_modified_time":"2026-04-07T01:52:55+00:00","og_image":[{"width":800,"height":500,"url":"https:\/\/neonledstrip.com\/wp-content\/uploads\/2026\/04\/led-strip-not-working-after-cutting.webp","type":"image\/webp"}],"author":"sales@neonledstrip.com","twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"sales@neonledstrip.com","Tempo estimado de leitura":"7 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#article","isPartOf":{"@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/"},"author":{"name":"sales@neonledstrip.com","@id":"https:\/\/neonledstrip.com\/#\/schema\/person\/3f06332039988429eff0a4c797dad6fe"},"headline":"LED Strip Not Working After Cutting? Here\u2019s Why and How to Fix It?","datePublished":"2026-04-07T01:52:54+00:00","dateModified":"2026-04-07T01:52:55+00:00","mainEntityOfPage":{"@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/"},"wordCount":1339,"commentCount":1,"publisher":{"@id":"https:\/\/neonledstrip.com\/#organization"},"image":{"@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#primaryimage"},"thumbnailUrl":"https:\/\/neonledstrip.com\/wp-content\/uploads\/2026\/04\/led-strip-not-working-after-cutting.webp","keywords":["cut LED strip not working","how to cut LED strip","LED strip repair"],"articleSection":["blog"],"inLanguage":"pt-PT","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#respond"]}]},{"@type":["WebPage","FAQPage"],"@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/","url":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/","name":"A fita LED n\u00e3o funciona depois de cortada? Causas e solu\u00e7\u00f5es f\u00e1ceis - Fita LED Neon","isPartOf":{"@id":"https:\/\/neonledstrip.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#primaryimage"},"image":{"@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#primaryimage"},"thumbnailUrl":"https:\/\/neonledstrip.com\/wp-content\/uploads\/2026\/04\/led-strip-not-working-after-cutting.webp","datePublished":"2026-04-07T01:52:54+00:00","dateModified":"2026-04-07T01:52:55+00:00","description":"O corte adequado das fitas LED \u00e9 essencial para garantir o seu correto funcionamento. Esperamos que agora tenha uma compreens\u00e3o abrangente.","breadcrumb":{"@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#breadcrumb"},"mainEntity":[{"@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#faq-question-1762571454062"},{"@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#faq-question-1762571455076"},{"@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#faq-question-1762571455742"},{"@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#faq-question-1762571456283"},{"@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#faq-question-1762571457534"}],"inLanguage":"pt-PT","potentialAction":[{"@type":"ReadAction","target":["https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/"]}]},{"@type":"ImageObject","inLanguage":"pt-PT","@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#primaryimage","url":"https:\/\/neonledstrip.com\/wp-content\/uploads\/2026\/04\/led-strip-not-working-after-cutting.webp","contentUrl":"https:\/\/neonledstrip.com\/wp-content\/uploads\/2026\/04\/led-strip-not-working-after-cutting.webp","width":800,"height":500,"caption":"LED strip not working after cutting showing broken connection and unlit section"},{"@type":"BreadcrumbList","@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/neonledstrip.com\/"},{"@type":"ListItem","position":2,"name":"LED Strip Not Working After Cutting? Here\u2019s Why and How to Fix It?"}]},{"@type":"WebSite","@id":"https:\/\/neonledstrip.com\/#website","url":"https:\/\/neonledstrip.com\/","name":"Fita LED de n\u00e9on","description":"","publisher":{"@id":"https:\/\/neonledstrip.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/neonledstrip.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"pt-PT"},{"@type":"Organization","@id":"https:\/\/neonledstrip.com\/#organization","name":"Fita LED de n\u00e9on","url":"https:\/\/neonledstrip.com\/","logo":{"@type":"ImageObject","inLanguage":"pt-PT","@id":"https:\/\/neonledstrip.com\/#\/schema\/logo\/image\/","url":"https:\/\/neonledstrip.com\/wp-content\/uploads\/2023\/03\/LOGO.jpg","contentUrl":"https:\/\/neonledstrip.com\/wp-content\/uploads\/2023\/03\/LOGO.jpg","width":646,"height":228,"caption":"Neon LED Strip"},"image":{"@id":"https:\/\/neonledstrip.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/neonledstrip.com\/#\/schema\/person\/3f06332039988429eff0a4c797dad6fe","name":"sales@neonledstrip.com","image":{"@type":"ImageObject","inLanguage":"pt-PT","@id":"https:\/\/neonledstrip.com\/wp-content\/litespeed\/avatar\/a7487ba5e9b7269c4a26c927df3706ed.jpg?ver=1778041667","url":"https:\/\/neonledstrip.com\/wp-content\/litespeed\/avatar\/a7487ba5e9b7269c4a26c927df3706ed.jpg?ver=1778041667","contentUrl":"https:\/\/neonledstrip.com\/wp-content\/litespeed\/avatar\/a7487ba5e9b7269c4a26c927df3706ed.jpg?ver=1778041667","caption":"sales@neonledstrip.com"},"sameAs":["https:\/\/neonledstrip.com"],"url":"https:\/\/neonledstrip.com\/pt\/author\/salesneonledstrip-com\/"},{"@type":"Question","@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#faq-question-1762571454062","position":1,"url":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#faq-question-1762571454062","name":"Como \u00e9 que se distingue entre tiras de luz LED de 12V e 24V?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"It is quite easy to distinguish between them; you can check the information printed on the packaging or look for the labels \"DC12V\" or \"DC24V\" clearly printed directly on the LED strip's PCB board.","inLanguage":"pt-PT"},"inLanguage":"pt-PT"},{"@type":"Question","@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#faq-question-1762571455076","position":2,"url":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#faq-question-1762571455076","name":"Um segmento muito curto de uma fita LED pode continuar a ser utilizado de forma independente depois de cortado?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, it can. Provided that you cut at the correct location and can supply a compatible power source\u2014either through soldering or using a miniature connector\u2014any segment of the light strip that is longer than a single cutting unit can function independently.","inLanguage":"pt-PT"},"inLanguage":"pt-PT"},{"@type":"Question","@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#faq-question-1762571455742","position":3,"url":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#faq-question-1762571455742","name":"As fitas de luz LED podem ser cortadas em qualquer s\u00edtio?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No, LED light strips can only be cut at specific locations. You must follow the designated cutting lines marked on the strip. Improper cutting may prevent the light strip from functioning correctly or result in circuit damage. Each light strip features pre-designed cutting points.","inLanguage":"pt-PT"},"inLanguage":"pt-PT"},{"@type":"Question","@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#faq-question-1762571456283","position":4,"url":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#faq-question-1762571456283","name":"Porque \u00e9 que uma fita LED n\u00e3o se acende depois de ser cortada?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"There are several possible reasons. The reasons why an LED strip might fail to light up after being cut include: cutting at the wrong location, reversing the positive and negative polarity, damaged solder joints, a voltage mismatch between the strip and the power supply, or damage to the circuit board.","inLanguage":"pt-PT"},"inLanguage":"pt-PT"},{"@type":"Question","@id":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#faq-question-1762571457534","position":5,"url":"https:\/\/neonledstrip.com\/led-strip-not-working-after-cutting\/#faq-question-1762571457534","name":"O corte de uma fita LED afecta o seu brilho ou desempenho de cor?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"If the cut is made at the correct location and the circuitry remains undamaged, the brightness and color performance of the LED strip will not be affected. Generally speaking, cutting the strip will not change its lighting effect or colour output.","inLanguage":"pt-PT"},"inLanguage":"pt-PT"}]}},"_links":{"self":[{"href":"https:\/\/neonledstrip.com\/pt\/wp-json\/wp\/v2\/posts\/2767","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/neonledstrip.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/neonledstrip.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/neonledstrip.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/neonledstrip.com\/pt\/wp-json\/wp\/v2\/comments?post=2767"}],"version-history":[{"count":13,"href":"https:\/\/neonledstrip.com\/pt\/wp-json\/wp\/v2\/posts\/2767\/revisions"}],"predecessor-version":[{"id":3378,"href":"https:\/\/neonledstrip.com\/pt\/wp-json\/wp\/v2\/posts\/2767\/revisions\/3378"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/neonledstrip.com\/pt\/wp-json\/wp\/v2\/media\/3376"}],"wp:attachment":[{"href":"https:\/\/neonledstrip.com\/pt\/wp-json\/wp\/v2\/media?parent=2767"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/neonledstrip.com\/pt\/wp-json\/wp\/v2\/categories?post=2767"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/neonledstrip.com\/pt\/wp-json\/wp\/v2\/tags?post=2767"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}