{"id":2664,"date":"2025-10-20T10:53:04","date_gmt":"2025-10-20T10:53:04","guid":{"rendered":"https:\/\/neonledstrip.com\/?p=2664"},"modified":"2025-10-20T10:53:58","modified_gmt":"2025-10-20T10:53:58","slug":"five-factors-that-lead-to-the-blackening-of-the-led-strip-light-source","status":"publish","type":"post","link":"https:\/\/neonledstrip.com\/es\/five-factors-that-lead-to-the-blackening-of-the-led-strip-light-source\/","title":{"rendered":"Cinco factores que provocan el ennegrecimiento de las tiras de luz LED"},"content":{"rendered":"<p>Many users of LED light strips have noticed that after a period of use. Their once uniform and bright light strips have become partially darkened, with uneven light spots and decreased brightness. In particular, noticeable LED strip source&#8221;blackening&#8221; or &#8220;yellowish carbonization&#8221; appears around the lamp beads. This phenomenon not only seriously affects the lighting effect and visual aesthetics, but also signals the premature end of the lamp&#8217;s lifespan.<\/p>\n\n\n\n<p>De hecho, el ennegrecimiento de las tiras de luz LED no es accidental. Est\u00e1 causado por una combinaci\u00f3n de factores internos y externos. La comprensi\u00f3n de estas causas puede ayudarle a evitar eficazmente el riesgo de oscurecimiento durante la adquisici\u00f3n, instalaci\u00f3n y mantenimiento. M\u00e1s informaci\u00f3n <a href=\"https:\/\/neonledstrip.com\/es\/pueden-las-tiras-de-led-provocar-un-incendio\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u00bfPueden las tiras de LED provocar un incendio?<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-degradation-and-carbonization-of-the-phosphor-coating\">Degradaci\u00f3n y carbonizaci\u00f3n del recubrimiento de f\u00f3sforo<\/h2>\n\n\n\n<p>The key to LED lamp beads emitting white light lies in the blue light chip stimulating the yellow phosphor coating on their surface. Which when mixed, creates white light. However, this coating is one of the core areas most susceptible to &#8220;blackening.&#8221;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/neonledstrip.com\/wp-content\/uploads\/2025\/10\/led-strip-light-source-blackening-closeup.webp\" alt=\"Primer plano de una tira de luz LED que muestra el ennegrecimiento de la fuente de luz debido al sobrecalentamiento.\" class=\"wp-image-2702\" srcset=\"https:\/\/neonledstrip.com\/wp-content\/uploads\/2025\/10\/led-strip-light-source-blackening-closeup.webp 800w, https:\/\/neonledstrip.com\/wp-content\/uploads\/2025\/10\/led-strip-light-source-blackening-closeup-300x188.webp 300w, https:\/\/neonledstrip.com\/wp-content\/uploads\/2025\/10\/led-strip-light-source-blackening-closeup-768x480.webp 768w, https:\/\/neonledstrip.com\/wp-content\/uploads\/2025\/10\/led-strip-light-source-blackening-closeup-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<p>It&#8217;s well known that when LEDs operate in high-temperature environments for long periods of time. The phosphor material will gradually degrade, age, and even carbonize due to thermal stress. Low-quality phosphors have poor heat resistance and may begin to decompose above 80\u00b0C. Resulting in reduced luminous efficiency, color temperature shift. And visible yellow or black spots on the surface of the lamp beads. In more serious cases, the phosphor may fall off or sinter, directly causing localised dimming.<\/p>\n\n\n\n<p>In addition, encapsulating materials (such as silicone or epoxy resin) can also yellow under the combined effects of ultraviolet light and high temperatures. Further LED strip light source exacerbating the &#8220;blackening&#8221; appearance. This phenomenon is particularly common in light strips with high power density and poor heat dissipation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-solution\">Soluci\u00f3n:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Intente elegir productos con f\u00f3sforos de alta estabilidad t\u00e9rmica.<\/li>\n\n\n\n<li>Aseg\u00farese de que el fabricante puede proporcionar un informe de prueba LM-80.<\/li>\n\n\n\n<li>Mantenga la temperatura de funcionamiento de la tira luminosa por debajo del l\u00edmite superior recomendado para ralentizar su degradaci\u00f3n.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-inadequate-heat-dissipation-design\">Dise\u00f1o inadecuado de la disipaci\u00f3n t\u00e9rmica<\/h2>\n\n\n\n<p>Heat is a life-threatening problem for LED lighting. Although LEDs are known as &#8220;cold light sources,&#8221; their electro-optical conversion efficiency isn&#8217;t 100%. And a significant amount of electrical energy is converted into heat. If heat dissipation is poorly designed, heat buildup will directly increase the LED junction temperature, triggering a series of chain reactions.<\/p>\n\n\n\n<p>In fact, cheap LED strips use thin FPCs (flexible printed circuits) without an aluminum-based heat dissipation layer. Or are installed in a confined space, preventing effective heat dissipation. High temperatures not only accelerate phosphor aging but also oxidize solder joints and cause the PCB&#8217;s copper foil to blacken, potentially leading to poor solder joints or short circuits.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-solution-0\">Soluci\u00f3n:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Elija una placa de circuito impreso de alta calidad con una excelente disipaci\u00f3n del calor.<\/li>\n\n\n\n<li>Utilice perfiles LED de aluminio o adhesivo 3M termoconductor para el montaje.<\/li>\n\n\n\n<li>Deje una ventilaci\u00f3n adecuada alrededor de la tira de luz.<\/li>\n\n\n\n<li>Si la tira de luces es larga, alim\u00e9ntala por secciones para evitar el sobrecalentamiento local.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-mismatched-or-poor-quality-power-supply\">Fuente de alimentaci\u00f3n desajustada o de mala calidad<\/h2>\n\n\n\n<p>Otra causa importante es una fuente de alimentaci\u00f3n insuficiente. El uso de una fuente de alimentaci\u00f3n incompatible o de baja calidad tambi\u00e9n es una causa com\u00fan de ennegrecimiento parcial o incluso de quemado de la fuente de luz de tira LED.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/neonledstrip.com\/wp-content\/uploads\/2025\/10\/LED-light-strip-and-power-supply.webp\" alt=\"Tira de luz LED y fuente de alimentaci\u00f3n\" class=\"wp-image-2701\" srcset=\"https:\/\/neonledstrip.com\/wp-content\/uploads\/2025\/10\/LED-light-strip-and-power-supply.webp 800w, https:\/\/neonledstrip.com\/wp-content\/uploads\/2025\/10\/LED-light-strip-and-power-supply-300x188.webp 300w, https:\/\/neonledstrip.com\/wp-content\/uploads\/2025\/10\/LED-light-strip-and-power-supply-768x480.webp 768w, https:\/\/neonledstrip.com\/wp-content\/uploads\/2025\/10\/LED-light-strip-and-power-supply-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<ul class=\"wp-block-list\">\n<li>Voltage Mismatch: If you choose a 12V LED light strip and mistakenly connect it to a 24V power supply. This will cause a surge in current and instantly burn out the LED chips. Even if the voltage is correct, if the power supply&#8217;s output current is unstable or pulsating, it can cause the LEDs to overload and overheat. How to choose the power supply, pls read <a href=\"https:\/\/neonledstrip.com\/es\/como-elegir-una-fuente-de-alimentacion-para-tiras-led\/\" target=\"_blank\" rel=\"noreferrer noopener\">C\u00f3mo elegir una fuente de alimentaci\u00f3n para tiras LED<\/a><\/li>\n\n\n\n<li>Insufficient or overloaded power: If the power supply wattage is less than the total power supply wattage of the light strip, the power supply will be in a chronic overload state, resulting in a drop in output voltage and abnormal light strip operation. Furthermore, if multiple light strips are connected in series for too long, exceeding the power supply&#8217;s capacity, the end LEDs will operate abnormally due to voltage decay, leading to localized overheating and blackening.<\/li>\n\n\n\n<li>Fuentes de alimentaci\u00f3n de baja calidad: Las fuentes de alimentaci\u00f3n de otras marcas suelen utilizar condensadores y transformadores de baja calidad, por lo que su capacidad antiinterferencias es deficiente. Son susceptibles a las fluctuaciones de la red el\u00e9ctrica, lo que provoca un elevado rizado de salida que puede da\u00f1ar los LED con el tiempo.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-solution-1\">Soluci\u00f3n:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Choose a high-quality power supply that&#8217;s CE and RoHS certified.<\/li>\n\n\n\n<li>Deje al menos un margen de 20% en la potencia de salida.<\/li>\n\n\n\n<li>Es preferible utilizar un excitador con salida de corriente constante y protecci\u00f3n contra cortocircuitos.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-humid-and-corrosive-environments\">Entornos h\u00famedos y corrosivos<\/h2>\n\n\n\n<p>Las tiras de LED que se utilizan con frecuencia en entornos h\u00famedos o altamente corrosivos, como cocinas, patios, balcones y paisajes al aire libre, deben estar debidamente impermeabilizadas. El vapor de agua, el humo de aceite o la niebla salina pueden penetrar gradualmente en la tira y provocar corrosi\u00f3n qu\u00edmica.<\/p>\n\n\n\n<p>La intrusi\u00f3n de vapor de agua puede provocar la oxidaci\u00f3n de las trazas de cobre de la placa de circuito impreso, formando p\u00e1tina verde u \u00f3xido de cobre negro, especialmente alrededor de las juntas de soldadura. Esta corrosi\u00f3n no s\u00f3lo aumenta la resistencia y provoca un calentamiento localizado, sino que tambi\u00e9n puede causar circuitos abiertos o cortocircuitos, lo que en \u00faltima instancia hace que los LED se vuelvan negros o se quemen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-solution-2\">Soluci\u00f3n:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Elija tiras de luz LED con un grado de protecci\u00f3n IP65 o superior.<\/li>\n\n\n\n<li>Utilice encapsulado de silicona o adhesivo PU para un embalaje a prueba de humedad.<\/li>\n\n\n\n<li>Mantenga regularmente la integridad de la capa impermeable y evite la inmersi\u00f3n prolongada en agua o en entornos con mucha humedad.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-improper-installation-and-prolonged-overload-use\">Instalaci\u00f3n incorrecta y uso prolongado con sobrecarga<\/h2>\n\n\n\n<p>Aun suponiendo que el producto en s\u00ed sea de calidad aceptable, los m\u00e9todos de instalaci\u00f3n y h\u00e1bitos de uso incorrectos pueden acortar considerablemente la vida \u00fatil de las tiras de luz LED y provocar el oscurecimiento de la fuente luminosa.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Los problemas de instalaci\u00f3n incluyen: doblar excesivamente las tiras luminosas, lo que puede provocar la rotura del cableado interno; utilizar conectores no espec\u00edficos, lo que puede causar un contacto deficiente y un calentamiento localizado; instalar tiras luminosas en ranuras cerradas sin espacio suficiente para disipar el calor; y conectar varias tiras luminosas en serie durante demasiado tiempo, lo que provoca una tensi\u00f3n insuficiente al final o un sobrecalentamiento.<\/li>\n\n\n\n<li>Sobrecarga a largo plazo: Algunos usuarios, movidos por el deseo de brillo, hacen funcionar las tiras luminosas a plena carga o incluso con sobrecarga (por ejemplo, 24 horas al d\u00eda, 7 d\u00edas a la semana) durante periodos prolongados sin descansos. Esto provoca la acumulaci\u00f3n de calor y acelera la degradaci\u00f3n del material.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-solution-3\">Soluci\u00f3n:<\/h3>\n\n\n\n<p>Evite doblar bruscamente o tirar de la tira de LED durante la instalaci\u00f3n.<br>Se recomienda descansar la tira luminosa cada 10-12 horas para prolongar su vida \u00fatil.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclusi\u00f3n<\/h2>\n\n\n\n<p>El ennegrecimiento de <a href=\"https:\/\/neonledstrip.com\/es\/cob-led-strip\/\" target=\"_blank\" rel=\"noreferrer noopener\">Tira de luz LED <\/a>suele ser el resultado de una combinaci\u00f3n de factores, que van desde la calidad del chip y el f\u00f3sforo hasta la disipaci\u00f3n del calor, la fuente de alimentaci\u00f3n, el embalaje, el entorno y los h\u00e1bitos de uso. Cada uno de estos factores puede suponer un riesgo potencial.<\/p>\n\n\n\n<p>Therefore, the most effective solution isn&#8217;t to resort to repairs afterwards, but to choose high-quality products from professional manufacturers during the purchase process. If you&#8217;re shopping for a new light strip, consider consulting our expert advice on choosing a truly durable and safe product.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-faqs\">Preguntas frecuentes<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1760145106211\"><strong class=\"schema-faq-question\">\u00bfSe puede reparar una tira de luz LED ennegrecida?<\/strong> <p class=\"schema-faq-answer\">Generally speaking, if you notice blackening or carbonization on the LED beads or PCB, it indicates irreversible physical or chemical damage that cannot be repaired. It&#8217;s recommended to cut off the damaged section and reconnect, or replace the entire LED strip.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1760145113743\"><strong class=\"schema-faq-question\">\u00bfC\u00f3mo puedo saber si el ennegrecimiento de una tira de LED se debe a un problema de alimentaci\u00f3n el\u00e9ctrica o a un problema de calidad?<\/strong> <p class=\"schema-faq-answer\">You can test it by replacing a power supply with a comparable power supply. If the problem persists, it&#8217;s most likely a problem with the light strip&#8217;s materials or workmanship. If it returns to normal after replacing it, it&#8217;s likely a power supply issue.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1760145115269\"><strong class=\"schema-faq-question\">\u00bfQu\u00e9 es m\u00e1s probable que se ponga negro, las tiras de LED de 12 V o las de 24 V?<\/strong> <p class=\"schema-faq-answer\">There&#8217;s no definitive answer, as the lighting methods vary. 24V light strips have less voltage attenuation over long distances, resulting in more even heating at the ends, making them more stable in long-distance installations. However, 12V light strips longer than 5 meters without a repeater or parallel connections are prone to dark areas or overheating at the ends, posing a higher risk.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1760145116237\"><strong class=\"schema-faq-question\">\u00bfCu\u00e1nto debe durar una tira de luz LED con un uso normal?<\/strong> <p class=\"schema-faq-answer\">Las tiras de luz LED cualificadas, en condiciones normales de uso, no deber\u00edan presentar ennegrecimiento apreciable en un plazo de 3 a 5 a\u00f1os de su per\u00edodo de garant\u00eda para uso en interiores.<\/p> <\/div> <\/div>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Many users of LED light strips have noticed that after a period of use. Their once uniform and bright light&#8230;<\/p>","protected":false},"author":1,"featured_media":2702,"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":[243,242],"class_list":["post-2664","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-do-led-light-strips-burn-out","tag-led-strip-burned-out"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.0 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Five Factors that Lead to the Blackening of the LED Strip Light Source - Neon LED 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It's recommended to cut off the damaged section and reconnect, or replace the entire LED strip.","inLanguage":"es"},"inLanguage":"es"},{"@type":"Question","@id":"https:\/\/neonledstrip.com\/five-factors-that-lead-to-the-blackening-of-the-led-strip-light-source\/#faq-question-1760145113743","position":2,"url":"https:\/\/neonledstrip.com\/five-factors-that-lead-to-the-blackening-of-the-led-strip-light-source\/#faq-question-1760145113743","name":"\u00bfC\u00f3mo puedo saber si el ennegrecimiento de una tira de LED se debe a un problema de alimentaci\u00f3n el\u00e9ctrica o a un problema de calidad?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"You can test it by replacing a power supply with a comparable power supply. If the problem persists, it's most likely a problem with the light strip's materials or workmanship. 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