{"id":3154,"date":"2025-08-26T06:03:19","date_gmt":"2025-08-26T06:03:19","guid":{"rendered":"https:\/\/pergolalights.net\/?p=3154"},"modified":"2026-04-03T08:29:42","modified_gmt":"2026-04-03T08:29:42","slug":"dual-color-temperature-leds-color-quality-decrease","status":"publish","type":"post","link":"https:\/\/pergolalights.net\/it\/dual-color-temperature-leds-color-quality-decrease\/","title":{"rendered":"Perch\u00e9 la riproduzione dei colori e la qualit\u00e0 cromatica diminuiscono quando i LED a doppia temperatura di colore sono impostati a met\u00e0 luminosit\u00e0?"},"content":{"rendered":"<div class=\"row align-center\"  id=\"row-1608209862\">\n\n\t<div id=\"col-1714054806\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-3150723093\" class=\"text\">\n\t\t\n<p>In the lighting industry, \u201cdual color temperature adjustment\u201d has long been commonplace. Whether in offices, hotels, or living rooms, the ability to freely switch between warm white and cool white seems to have become a standard feature of smart lighting.<\/p>\n\t\t\n<style>\n#text-3150723093 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-3150723093 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row\"  id=\"row-1157650705\">\n\n\t<div id=\"col-1598973229\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_267368624\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"1333\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Room_color_temperature-1.webp\" class=\"attachment-original size-original\" alt=\"Room_color_temperature\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Room_color_temperature-1.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Room_color_temperature-1-510x340.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Room_color_temperature-1-600x400.webp 600w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Room_color_temperature-1-1200x800.webp 1200w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Room_color_temperature-1-768x512.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Room_color_temperature-1-1536x1024.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Room_color_temperature-1-18x12.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_267368624 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-65311626\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_269683564\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"1333\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_color_temperatures_of_lights_and_their_colors.webp\" class=\"attachment-original size-original\" alt=\"Different_color_temperatures_of_lights_and_their_colors\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_color_temperatures_of_lights_and_their_colors.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_color_temperatures_of_lights_and_their_colors-510x340.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_color_temperatures_of_lights_and_their_colors-600x400.webp 600w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_color_temperatures_of_lights_and_their_colors-1200x800.webp 1200w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_color_temperatures_of_lights_and_their_colors-768x512.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_color_temperatures_of_lights_and_their_colors-1536x1024.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_color_temperatures_of_lights_and_their_colors-18x12.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_269683564 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t<div id=\"text-3345854578\" class=\"text\">\n\t\t\n<p>However, many designers and users find that when the color temperature is set to an intermediate value, something seems \u201coff\u201d\u2014some lights show a noticeable decrease in color rendering, while others take on a pinkish or greenish tint.<\/p>\n\t\t\n<style>\n#text-3345854578 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-3345854578 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row\"  id=\"row-1381349266\">\n\n\t<div id=\"col-8920532\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_521137443\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"983\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/The_different_color_temperatures_of_the_lights.webp\" class=\"attachment-original size-original\" alt=\"The_different_color_temperatures_of_the_lights\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/The_different_color_temperatures_of_the_lights.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/The_different_color_temperatures_of_the_lights-510x251.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/The_different_color_temperatures_of_the_lights-800x393.webp 800w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/The_different_color_temperatures_of_the_lights-1400x688.webp 1400w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/The_different_color_temperatures_of_the_lights-768x377.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/The_different_color_temperatures_of_the_lights-1536x755.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/The_different_color_temperatures_of_the_lights-18x9.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_521137443 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-2134024838\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_878338336\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"983\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_colors_of_light.webp\" class=\"attachment-original size-original\" alt=\"Different_colors_of_light\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_colors_of_light.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_colors_of_light-510x251.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_colors_of_light-800x393.webp 800w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_colors_of_light-1400x688.webp 1400w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_colors_of_light-768x377.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_colors_of_light-1536x755.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Different_colors_of_light-18x9.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_878338336 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1237084644\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"510\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/both_Ra_and_R9_decrease_significantly.webp\" class=\"attachment-original size-original\" alt=\"both_Ra_and_R9_decrease_significantly\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/both_Ra_and_R9_decrease_significantly.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/both_Ra_and_R9_decrease_significantly-510x130.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/both_Ra_and_R9_decrease_significantly-800x204.webp 800w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/both_Ra_and_R9_decrease_significantly-1400x357.webp 1400w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/both_Ra_and_R9_decrease_significantly-768x196.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/both_Ra_and_R9_decrease_significantly-1536x392.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/both_Ra_and_R9_decrease_significantly-18x5.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1237084644 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1393018852\" class=\"text\">\n\t\t\n<p>Figure: After mixed dimming of dual-color temperature LEDs with high CRI, both Ra and R9 decrease significantly.<\/p>\n<p>\u00a0<\/p>\n\t\t\n<style>\n#text-1393018852 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-1393018852 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1177684502\" class=\"text\">\n\t\t\n<p>This is not an illusion, but rather the inevitable result of the dual-color temperature LED mixed lighting principle. This article will use the most rigorous technical logic to help you understand the reasons behind this phenomenon and provide professional recommendations for improvement.<\/p>\n\t\t\n<style>\n#text-1177684502 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-1177684502 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-481989284\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-481989284 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row\"  id=\"row-1961926577\">\n\n\t<div id=\"col-1474238966\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\" style=\"background-color:#bc7d4a;\" >\n\t\t\t\n\t\t\t\n\t<div id=\"text-48101996\" class=\"text\">\n\t\t\n<h2><strong><b>1. <\/b><\/strong><b><\/b><strong><b>The Scientific Language of Light Quality<\/b><\/strong><\/h2>\n\t\t\n<style>\n#text-48101996 {\n  font-size: 0.75rem;\n  color: rgb(255, 255, 255);\n}\n#text-48101996 > * {\n  color: rgb(255, 255, 255);\n}\n@media (min-width:550px) {\n  #text-48101996 {\n    font-size: 1.1rem;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-1474238966 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>\n\t<div id=\"text-3280602267\" class=\"text\">\n\t\t\n<p>Before discussing the consistency of dual-color temperature mixed lighting, we must first establish a common \u201coptical language,\u201d including:<\/p>\n<p>Spectral Power Distribution (SPD) \u2013 The \u201cfingerprint\u201d of a light source, determining all characteristics such as color temperature and color rendering.<\/p>\n<ul>\n<li>Incandescent light has a continuous and smooth spectrum, while the SPD of white LEDs is composed of blue light chips and phosphors, typically featuring a sharp blue peak and segmented yellow\/red bands.<\/li>\n<li>In a dual-color temperature system, the SPD differences between warm white (e.g., 2700K) and cool white (e.g., 6500K) are significant, and mixing them inevitably results in a new spectral profile.<\/li>\n<\/ul>\n<p>\u00a0<\/p>\n\t\t\n<style>\n#text-3280602267 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-3280602267 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-2701553911\" class=\"text\">\n\t\t\n<h3><strong><b>Color Rendering Index (CRI, TM-30)<\/b><\/strong><\/h3>\n\t\t\n<style>\n#text-2701553911 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-2701553911 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1411841639\" class=\"text\">\n\t\t\n<ul>\n<li>CRI Ra: An internationally recognized standard used for decades, but it only evaluates eight low-saturation test color samples, making it susceptible to \u201coptimization\u201d that results in high numerical values but poor actual color reproduction.<\/li>\n<li>R9: Saturated red color rendering index, critical for skin tones, wood, and meat. Light sources with high Ra but low R9 often cause colors to appear grayish.<\/li>\n<\/ul>\n\t\t\n<style>\n#text-1411841639 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-1411841639 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1520096624\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"1333\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_Rendering_Index.webp\" class=\"attachment-original size-original\" alt=\"Color_Rendering_Index\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_Rendering_Index.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_Rendering_Index-510x340.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_Rendering_Index-600x400.webp 600w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_Rendering_Index-1200x800.webp 1200w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_Rendering_Index-768x512.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_Rendering_Index-1536x1024.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_Rendering_Index-18x12.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1520096624 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-378593733\" class=\"text\">\n\t\t\n<ul>\n<li>TM-30: An upgraded version launched by IES North America, adding dual indicators of Rf (fidelity) and Rg (saturation), and using color vector diagrams to visually display color deviation direction and magnitude, providing a more comprehensive assessment than CRI.<\/li>\n<\/ul>\n\t\t\n<style>\n#text-378593733 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-378593733 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row\"  id=\"row-646472792\">\n\n\t<div id=\"col-1645047918\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1446548641\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"1333\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/99-Color-Evaluation-Samples.webp\" class=\"attachment-original size-original\" alt=\"99 Color Evaluation Samples\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/99-Color-Evaluation-Samples.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/99-Color-Evaluation-Samples-510x340.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/99-Color-Evaluation-Samples-600x400.webp 600w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/99-Color-Evaluation-Samples-1200x800.webp 1200w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/99-Color-Evaluation-Samples-768x512.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/99-Color-Evaluation-Samples-1536x1024.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/99-Color-Evaluation-Samples-18x12.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1446548641 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-245960105\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1267059201\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"1333\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Chromaticity_Coordinates_ofthe_99_Samples.webp\" class=\"attachment-original size-original\" alt=\"Chromaticity_Coordinates_ofthe_99_Samples\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Chromaticity_Coordinates_ofthe_99_Samples.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Chromaticity_Coordinates_ofthe_99_Samples-510x340.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Chromaticity_Coordinates_ofthe_99_Samples-600x400.webp 600w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Chromaticity_Coordinates_ofthe_99_Samples-1200x800.webp 1200w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Chromaticity_Coordinates_ofthe_99_Samples-768x512.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Chromaticity_Coordinates_ofthe_99_Samples-1536x1024.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Chromaticity_Coordinates_ofthe_99_Samples-18x12.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1267059201 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t<div id=\"gap-434627339\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-434627339 {\n  padding-top: 50px;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-1025805083\" class=\"text\">\n\t\t\n<h3><strong><b>Color difference (SDCM) and MacAdam ellipse<\/b><\/strong><\/h3>\n\t\t\n<style>\n#text-1025805083 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-1025805083 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-278468732\" class=\"text\">\n\t\t\n<ul>\n<li>LEDs from the same batch may also have slight color differences, and SDCM is an indicator that quantifies this difference.<\/li>\n<li>High-quality lighting usually requires 2-3 steps of SDCM, but this is only a chip-level indicator, and system consistency also depends on optical design and drive accuracy.<\/li>\n<\/ul>\n\t\t\n<style>\n#text-278468732 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-278468732 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_286208555\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1280\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_difference_SDCM_and_MacAdam_ellipse.webp\" class=\"attachment-original size-original\" alt=\"Color_difference_(SDCM)_and_MacAdam_ellipse\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_difference_SDCM_and_MacAdam_ellipse.webp 1920w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_difference_SDCM_and_MacAdam_ellipse-510x340.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_difference_SDCM_and_MacAdam_ellipse-600x400.webp 600w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_difference_SDCM_and_MacAdam_ellipse-1200x800.webp 1200w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_difference_SDCM_and_MacAdam_ellipse-768x512.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_difference_SDCM_and_MacAdam_ellipse-1536x1024.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Color_difference_SDCM_and_MacAdam_ellipse-18x12.webp 18w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_286208555 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-1854947692\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1854947692 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-1030628952\">\n\n\t<div id=\"col-1694957828\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner text-center\" style=\"background-color:#bc7d4a;\" >\n\t\t\t\n\t\t\t\n\t<div id=\"text-2321012426\" class=\"text\">\n\t\t\n<h2><strong><b>2. Geometric limitations of dual-color temperature mixed lighting.<\/b><\/strong><\/h2>\n\t\t\n<style>\n#text-2321012426 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n  color: rgb(255,255,255);\n}\n#text-2321012426 > * {\n  color: rgb(255,255,255);\n}\n@media (min-width:550px) {\n  #text-2321012426 {\n    font-size: 1.1rem;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-1694957828 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-219450284\">\n\n\t<div id=\"col-112692866\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-3562812306\" class=\"text\">\n\t\t\n<p>The dual color temperature system consists of a warm white channel and a cool white channel. When adjusting the color temperature, the two SPDs are essentially linearly superimposed at different ratios.<\/p>\n<p>\u00a0<\/p>\n\t\t\n<style>\n#text-3562812306 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-3562812306 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-522136890\" class=\"text\">\n\t\t\n<h3><strong><b>The issue<\/b><\/strong><strong><b>s are<\/b><\/strong><strong><b>: \u00a0<\/b><\/strong><\/h3>\n\t\t\n<style>\n#text-522136890 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-522136890 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-2950092560\" class=\"text\">\n\t\t\n<ul>\n<li>On the CIE chromaticity diagram, the color trajectory produced by mixing is a straight line, while the ideal white light (blackbody trajectory BBL) is a curved line.<\/li>\n<li>When adjusted to an intermediate color temperature, this straight line inevitably \u201ccuts across\u201d the BBL from below, resulting in a systematic negative Duv offset, which manifests as a noticeable pink or magenta tint.<\/li>\n<\/ul>\n<p>This means that even if the color temperature perfectly aligns with the BBL at both endpoints, color deviation in the intermediate range is physically unavoidable.<\/p>\n\t\t\n<style>\n#text-2950092560 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-2950092560 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row\"  id=\"row-243458768\">\n\n\t<div id=\"col-213196705\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1568780439\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"1333\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/vled-CIE-chromaticity.webp\" class=\"attachment-original size-original\" alt=\"vled CIE chromaticity\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/vled-CIE-chromaticity.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/vled-CIE-chromaticity-510x340.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/vled-CIE-chromaticity-600x400.webp 600w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/vled-CIE-chromaticity-1200x800.webp 1200w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/vled-CIE-chromaticity-768x512.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/vled-CIE-chromaticity-1536x1024.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/vled-CIE-chromaticity-18x12.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1568780439 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1170305467\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"1333\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/DUV_deviation.webp\" class=\"attachment-original size-original\" alt=\"DUV_deviation\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/DUV_deviation.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/DUV_deviation-510x340.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/DUV_deviation-600x400.webp 600w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/DUV_deviation-1200x800.webp 1200w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/DUV_deviation-768x512.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/DUV_deviation-1536x1024.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/DUV_deviation-18x12.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1170305467 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-115549073\" class=\"col medium-6 small-12 large-6\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1479553061\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"1333\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/led_color_change.webp\" class=\"attachment-original size-original\" alt=\"led_color_change\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/led_color_change.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/led_color_change-510x340.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/led_color_change-600x400.webp 600w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/led_color_change-1200x800.webp 1200w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/led_color_change-768x512.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/led_color_change-1536x1024.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/led_color_change-18x12.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1479553061 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t<div id=\"text-2358970941\" class=\"text\">\n\t\t\n<p><strong>Figure: Illustration of DUV deviation from the convergence curve<\/strong><\/p>\n\t\t\n<style>\n#text-2358970941 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-2358970941 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-1233128332\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1233128332 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-307306261\">\n\n\t<div id=\"col-1246371168\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner text-center\" style=\"background-color:#bc7d4a;\" >\n\t\t\t\n\t\t\t\n\t<div id=\"text-3700031488\" class=\"text\">\n\t\t\n<h2><strong><b>3. <\/b><\/strong><strong><b>Why does color rendering collapse at intermediate color temperatures?<\/b><\/strong><\/h2>\n\t\t\n<style>\n#text-3700031488 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n  color: rgb(255,255,255);\n}\n#text-3700031488 > * {\n  color: rgb(255,255,255);\n}\n@media (min-width:550px) {\n  #text-3700031488 {\n    font-size: 1.1rem;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-1246371168 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-2101259827\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-2541818726\" class=\"text\">\n\t\t\n<p>In actual testing, the CRI and Rf of dual-color temperature LEDs often show a noticeable \u201cdip\u201d in the middle range (3500K~4500K), especially with a significant drop in R9.<\/p>\n\t\t\n<style>\n#text-2541818726 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-2541818726 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1298778836\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px 20px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"1333\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Why_does_color_rendering_collapse_at_intermediate_color_temperatures.webp\" class=\"attachment-original size-original\" alt=\"Why_does_color_rendering_collapse_at_intermediate_color_temperatures\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Why_does_color_rendering_collapse_at_intermediate_color_temperatures.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Why_does_color_rendering_collapse_at_intermediate_color_temperatures-510x340.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Why_does_color_rendering_collapse_at_intermediate_color_temperatures-600x400.webp 600w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Why_does_color_rendering_collapse_at_intermediate_color_temperatures-1200x800.webp 1200w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Why_does_color_rendering_collapse_at_intermediate_color_temperatures-768x512.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Why_does_color_rendering_collapse_at_intermediate_color_temperatures-1536x1024.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Why_does_color_rendering_collapse_at_intermediate_color_temperatures-18x12.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1298778836 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-2101259827 > .col-inner {\n  margin: 0px 0px -25px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-342452765\">\n\n\t<div id=\"col-544339052\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-2473627329\" class=\"text\">\n\t\t\n<p>There are three reasons: \u00a0<\/p>\n<ol>\n<li><b><\/b><strong><b>Spectral gaps:<\/b><\/strong>Warm white and cool white LEDs each have their own strengths and weaknesses, and mixing them in the mid-range can result in energy \u201cvalleys\u201d in critical regions such as 480\u2013560 nm. \u00a0<\/li>\n<li><b><\/b><strong><b>Metamerism failure:<\/b><\/strong>While the SPD of mixed light can achieve the same color temperature, it is completely different from the true single-color-temperature spectrum, leading to color reproduction distortion.<\/li>\n<li><b><\/b><strong><b>TM-30 reveals saturation changes:<\/b><\/strong>The mid-range color temperature Rg often increases (over-saturation), making colors more \u201cvibrant,\u201d but reducing color fidelity. This may be an advantage in retail settings, but it is a critical flaw in high-fidelity environments such as museums and medical facilities.<\/li>\n<\/ol>\n\t\t\n<style>\n#text-2473627329 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-2473627329 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-820920437\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-820920437 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-1912963149\">\n\n\t<div id=\"col-1966467284\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner text-center\" style=\"background-color:#bc7d4a;\" >\n\t\t\t\n\t\t\t\n\t<div id=\"text-4237328722\" class=\"text\">\n\t\t\n<h2><strong><b>4. <\/b><\/strong><b><\/b><strong><b> Color tolerance consistency is not just about chip grading<\/b><\/strong><\/h2>\n\t\t\n<style>\n#text-4237328722 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n  color: rgb(255,255,255);\n}\n#text-4237328722 > * {\n  color: rgb(255,255,255);\n}\n@media (min-width:550px) {\n  #text-4237328722 {\n    font-size: 1.1rem;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-1966467284 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-396922231\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<div class=\"row\"  id=\"row-1254437160\">\n\n\t<div id=\"col-704665835\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-3212365298\" class=\"text\">\n\t\t\n<p>Many people believe that selecting LED chips with a 2-3 step SDCM can ensure system color consistency, but in reality, there are three major risks:<\/p>\n<ol>\n<li><strong><b> Insufficient optical design<\/b><\/strong>\u2192 Uneven mixing of light, resulting in color fringing and color spots. \u00a0<\/li>\n<li><strong><b> Insufficient driver precision<\/b><\/strong>\u2192 CCT drift during dimming, especially noticeable at low brightness levels. \u00a0<\/li>\n<li><strong><b> Lack of spatial and temporal stability<\/b><\/strong>\u2192 Increased color differences at different angles and over extended usage periods.<\/li>\n<\/ol>\n\t\t\n<style>\n#text-3212365298 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-3212365298 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_633305377\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" style=\"margin:0px 0px -30px 0px;\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"1333\" src=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Lack-of-spatial-and-temporal-stability.webp\" class=\"attachment-original size-original\" alt=\"Lack of spatial and temporal stability\" srcset=\"https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Lack-of-spatial-and-temporal-stability.webp 2000w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Lack-of-spatial-and-temporal-stability-510x340.webp 510w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Lack-of-spatial-and-temporal-stability-600x400.webp 600w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Lack-of-spatial-and-temporal-stability-1200x800.webp 1200w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Lack-of-spatial-and-temporal-stability-768x512.webp 768w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Lack-of-spatial-and-temporal-stability-1536x1024.webp 1536w, https:\/\/pergolalights.net\/wp-content\/uploads\/2025\/08\/Lack-of-spatial-and-temporal-stability-18x12.webp 18w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_633305377 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_2047560831\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_2047560831 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-705498734\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-705498734 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-396922231 > .col-inner {\n  margin: 0px 0px -25px 0px;\n}\n<\/style>\n\t<\/div>\n\n\t\n\n\t<div id=\"col-1055261551\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner text-center\" style=\"background-color:#bc7d4a;\" >\n\t\t\t\n\t\t\t\n\t<div id=\"text-1201767398\" class=\"text\">\n\t\t\n<h2><strong>5. <\/strong><b><\/b><strong><b>How to break through the limits of dual color temperature?<\/b><\/strong><\/h2>\n\t\t\n<style>\n#text-1201767398 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n  color: rgb(255,255,255);\n}\n#text-1201767398 > * {\n  color: rgb(255,255,255);\n}\n@media (min-width:550px) {\n  #text-1201767398 {\n    font-size: 1.1rem;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-1055261551 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>\n<div class=\"row align-center\"  id=\"row-709451541\">\n\n\t<div id=\"col-1132962031\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-3124399301\" class=\"text\">\n\t\t\n<p>To fundamentally solve the problem of color rendering and color tolerance consistency, the industry has begun to adopt a multi-channel spectral adjustment strategy:<\/p>\n\t\t\n<style>\n#text-3124399301 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-3124399301 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-842850448\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-842850448 {\n  padding-top: 30px;\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"text-975749457\" class=\"text\">\n\t\t\n<ul>\n<li><b><\/b><strong><b>Three-channel: <\/b><\/strong>Adding neutral white between warm white and cool white significantly improves Duv offset.<\/li>\n<li><b><\/b><strong><b>Four\/five-channel (RGBW, RGBAW):<\/b><\/strong>Introducing independent primary colors such as red, green, blue, and amber, the algorithm can optimize SPD under metamerism conditions, achieving:<\/li>\n<\/ul>\n<p><strong><b>~<\/b><\/strong>\u00a0Full-range BBL matching (Duv \u2248 0);<\/p>\n<p><strong><b>~<\/b><\/strong>\u00a0Full-color temperature high color rendering (Ra &gt; 90, R9 &gt; 90);<\/p>\n<p><strong><b>~<\/b><\/strong>\u00a0Controllable spectral continuity, supporting human-centric lighting, specific color enhancement, and other applications.<\/p>\n<p>Although multi-channel systems have higher costs and control complexity, they are the only solution capable of simultaneously meeting the dual high requirements of color rendering and consistency in high-end lighting and color-critical applications.<\/p>\n\t\t\n<style>\n#text-975749457 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-975749457 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-2005595407\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-2005595407 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-268176248\">\n\n\t<div id=\"col-94621162\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<div class=\"row align-center\"  id=\"row-708213080\">\n\n\t<div id=\"col-897176586\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner text-center\" style=\"background-color:#bc7d4a;\" >\n\t\t\t\n\t\t\t\n\t<div id=\"text-1981299159\" class=\"text\">\n\t\t\n<h2><strong><b>6. <\/b><\/strong><strong><b>For designers and buyers: Look beyond just CRI and SDCM.<\/b><\/strong><\/h2>\n\t\t\n<style>\n#text-1981299159 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n  color: rgb(255,255,255);\n}\n#text-1981299159 > * {\n  color: rgb(255,255,255);\n}\n@media (min-width:550px) {\n  #text-1981299159 {\n    font-size: 1.1rem;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\n<style>\n#col-897176586 > .col-inner {\n  padding: 60px 0px 48px 0px;\n  border-radius: 7px;\n}\n<\/style>\n\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-673055798\">\n\n\t<div id=\"col-1464607682\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<div class=\"row align-center\"  id=\"row-158659152\">\n\n\t<div id=\"col-423910694\" class=\"col medium-11 small-12 large-11\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div id=\"text-788737369\" class=\"text\">\n\t\t\n<ol>\n<li><b><\/b><strong><b>Don<\/b><\/strong><strong><b>\u2019<\/b><\/strong><strong><b>t just look at CRI or SDCM<\/b><\/strong>,<\/li>\n<\/ol>\n<p>Request TM-30 reports for endpoint and midpoint color temperatures, Duv data, and dimming stability curves.<\/p>\n<ol start=\"2\">\n<li><b><\/b><strong><b>Evaluate the system, not the components<\/b><\/strong><strong><b>,<\/b><\/strong><\/li>\n<\/ol>\n<p>Examine optical mixing solutions and driver control precision, rather than just focusing on LED chip specifications.\u00a0<\/p>\n<ol start=\"3\">\n<li><b><\/b><strong><b>Application scenarios determine technology selection<\/b><\/strong>,<\/li>\n<\/ol>\n<p>Optimized dual-channel systems are suitable for general office use; museums, healthcare, and art applications must select multi-channel spectrally adjustable solutions.<\/p>\n\t\t\n<style>\n#text-788737369 {\n  font-size: 0.75rem;\n  line-height: 1.5;\n}\n@media (min-width:550px) {\n  #text-788737369 {\n    font-size: 1.1rem;\n    line-height: 2;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t<div id=\"gap-1590625666\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\">\n\t\t\n<style>\n#gap-1590625666 {\n  padding-top: 100px;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":3189,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[84],"tags":[],"class_list":["post-3154","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Dual-color temp LEDs: Look beyond CRI\/SDCM. 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