{"id":5289,"date":"2025-07-29T00:36:47","date_gmt":"2025-07-29T00:36:47","guid":{"rendered":"https:\/\/prillumen.com\/?p=5289"},"modified":"2025-07-29T00:36:47","modified_gmt":"2025-07-29T00:36:47","slug":"%ce%b2%ce%b1%cf%83%ce%b9%ce%ba%ce%ae-%ce%b3%ce%bd%cf%8e%cf%83%ce%b7-%cf%86%cf%89%cf%84%ce%b9%cf%83%ce%bc%ce%bf%cf%8d1","status":"publish","type":"post","link":"https:\/\/prillumen.com\/el\/blog\/basic-lighting-knowledge1\/","title":{"rendered":"\u0392\u03b1\u03c3\u03b9\u03ba\u03ad\u03c2 \u0393\u03bd\u03ce\u03c3\u03b5\u03b9\u03c2 \u03a6\u03c9\u03c4\u03b9\u03c3\u03bc\u03bf\u03cd(1)"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><p class=\"my-0\">\u039f \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c0\u03b1\u03af\u03b6\u03b5\u03b9 \u03b6\u03c9\u03c4\u03b9\u03ba\u03cc \u03c1\u03cc\u03bb\u03bf \u03c3\u03c4\u03b7\u03bd \u03ba\u03b1\u03b8\u03b7\u03bc\u03b5\u03c1\u03b9\u03bd\u03ae \u03bc\u03b1\u03c2 \u03b6\u03c9\u03ae, \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03cc\u03c7\u03b9 \u03bc\u03cc\u03bd\u03bf \u03c4\u03bf \u03c0\u03ce\u03c2 \u03b2\u03bb\u03ad\u03c0\u03bf\u03c5\u03bc\u03b5, \u03b1\u03bb\u03bb\u03ac \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03ac\u03bd\u03b5\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03ac \u03bc\u03b1\u03c2. \u03a3\u03b5 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf \u03ac\u03c1\u03b8\u03c1\u03bf, \u03b8\u03b1 \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c3\u03c4\u03b1 10 \u03c0\u03b9\u03bf \u03c3\u03c5\u03c7\u03bd\u03ac \u03b5\u03c1\u03c9\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ad\u03c2 \u03b3\u03bd\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03bf\u03cd. \u0395\u03af\u03c4\u03b5 \u03b5\u03af\u03c3\u03c4\u03b5 \u03b5\u03c0\u03b1\u03b3\u03b3\u03b5\u03bb\u03bc\u03b1\u03c4\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03ba\u03bb\u03ac\u03b4\u03bf\u03c5 \u03b5\u03af\u03c4\u03b5 \u03b9\u03b4\u03b9\u03bf\u03ba\u03c4\u03ae\u03c4\u03b7\u03c2 \u03c3\u03c0\u03b9\u03c4\u03b9\u03bf\u03cd, \u03b7 \u03ba\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03b1\u03c5\u03c4\u03ce\u03bd \u03c4\u03c9\u03bd \u03b5\u03bd\u03bd\u03bf\u03b9\u03ce\u03bd \u03b8\u03b1 \u03c3\u03b1\u03c2 \u03b2\u03bf\u03b7\u03b8\u03ae\u03c3\u03b5\u03b9 \u03bd\u03b1 \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03c4\u03b5 \u03b5\u03bd\u03b7\u03bc\u03b5\u03c1\u03c9\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b1\u03c0\u03bf\u03c6\u03ac\u03c3\u03b5\u03b9\u03c2 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03bb\u03cd\u03c3\u03b5\u03b9\u03c2 \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03bf\u03cd.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u03a0\u03af\u03bd\u03b1\u03ba\u03b1\u03c2 \u03a0\u03b5\u03c1\u03b9\u03b5\u03c7\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u0395\u03bd\u03b1\u03bb\u03bb\u03b1\u03b3\u03ae<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/prillumen.com\/el\/blog\/basic-lighting-knowledge1\/#1_What_is_a_Lumen\" >1. \u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u039b\u03bf\u03cd\u03bc\u03b9\u03b5\u03bd;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/prillumen.com\/el\/blog\/basic-lighting-knowledge1\/#2_The_Role_of_Color_Temperature_Kelvin_in_Lighting\" >2. \u039f \u03c1\u03cc\u03bb\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1\u03c2 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 (Kelvin) \u03c3\u03c4\u03bf\u03bd \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/prillumen.com\/el\/blog\/basic-lighting-knowledge1\/#3_How_Does_the_Color_Rendering_Index_CRI_Affect_Lighting_Quality\" >3. \u03a0\u03ce\u03c2 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03b5\u03b9 \u03bf \u0394\u03b5\u03af\u03ba\u03c4\u03b7\u03c2 \u0391\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2 \u03a7\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 (CRI) \u03c4\u03b7\u03bd \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03bf\u03cd;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/prillumen.com\/el\/blog\/basic-lighting-knowledge1\/#4_Beam_Angle_and_Choosing_the_Right_Application\" >4. \u0393\u03c9\u03bd\u03af\u03b1 \u03b4\u03ad\u03c3\u03bc\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c4\u03b7\u03c2 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae\u03c2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/prillumen.com\/el\/blog\/basic-lighting-knowledge1\/#5_LED_vs_Traditional_Bulbs\" >5. LED \u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 \u03c0\u03b1\u03c1\u03b1\u03b4\u03bf\u03c3\u03b9\u03b1\u03ba\u03ce\u03bd \u03bb\u03b1\u03bc\u03c0\u03ce\u03bd<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/prillumen.com\/el\/blog\/basic-lighting-knowledge1\/#6_What_is_UGR_Unified_Glare_Rating\" >6. \u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf UGR (\u0395\u03bd\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b7 \u0392\u03b1\u03b8\u03bc\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u0398\u03ac\u03bc\u03b2\u03c9\u03c3\u03b7\u03c2);<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/prillumen.com\/el\/blog\/basic-lighting-knowledge1\/#7_The_Significance_of_IP_Ratings_in_Waterproof_and_Dustproof_Fixtures\" >7. \u0397 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1 \u03c4\u03c9\u03bd \u03b2\u03b1\u03b8\u03bc\u03bf\u03bb\u03bf\u03b3\u03b9\u03ce\u03bd IP \u03c3\u03b5 \u03b1\u03b4\u03b9\u03ac\u03b2\u03c1\u03bf\u03c7\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03b8\u03b5\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c4\u03b7 \u03c3\u03ba\u03cc\u03bd\u03b7 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ad\u03c2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/prillumen.com\/el\/blog\/basic-lighting-knowledge1\/#8_Understanding_the_Relationship_Between_Watt_and_Brightness\" >8. \u039a\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c3\u03c7\u03ad\u03c3\u03b7\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd Watt \u03ba\u03b1\u03b9 \u03c6\u03c9\u03c4\u03b5\u03b9\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/prillumen.com\/el\/blog\/basic-lighting-knowledge1\/#9_What_is_Power_Factor\" >9. \u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf \u03a3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u0399\u03c3\u03c7\u03cd\u03bf\u03c2;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/prillumen.com\/el\/blog\/basic-lighting-knowledge1\/#10_Differences_Between_AC_and_DC_Lighting_Fixtures\" >10. \u0394\u03b9\u03b1\u03c6\u03bf\u03c1\u03ad\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ce\u03bd \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03bf\u03cd AC \u03ba\u03b1\u03b9 DC<\/a><\/li><\/ul><\/nav><\/div>\n<h2 id=\"1-what-is-a-lumen\" class=\"mb-2 mt-6 text-base font-&#091;500&#093; first:mt-0 md:text-lg dark:font-&#091;475&#093; &#091;hr+&amp;&#093;:mt-4\"><span class=\"ez-toc-section\" id=\"1_What_is_a_Lumen\"><\/span>1. \u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u039b\u03bf\u03cd\u03bc\u03b9\u03b5\u03bd;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"my-0\">A\u00a0<strong>\u039b\u03bf\u03cd\u03bc\u03b9\u03b5\u03bd<\/strong>\u00a0(lm) \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1 \u03c0\u03bf\u03c5 \u03bc\u03b5\u03c4\u03c1\u03ac \u03c4\u03bf \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc \u03c0\u03bf\u03c3\u03cc \u03bf\u03c1\u03b1\u03c4\u03bf\u03cd \u03c6\u03c9\u03c4\u03cc\u03c2 \u03c0\u03bf\u03c5 \u03b5\u03ba\u03c0\u03ad\u03bc\u03c0\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03bc\u03b9\u03b1 \u03c0\u03b7\u03b3\u03ae. \u038c\u03c3\u03bf \u03c5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b2\u03b1\u03b8\u03bc\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03bb\u03bf\u03cd\u03bc\u03b9\u03b5\u03bd, \u03c4\u03cc\u03c3\u03bf \u03c0\u03b9\u03bf \u03c6\u03c9\u03c4\u03b5\u03b9\u03bd\u03cc \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03c6\u03c9\u03c2. \u03a4\u03bf \u03bb\u03bf\u03cd\u03bc\u03b9\u03b5\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03bb\u03ad\u03bf\u03bd \u03b7 \u03ba\u03cd\u03c1\u03b9\u03b1 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03b9\u03b3\u03c1\u03b1\u03c6\u03ae \u03c4\u03b7\u03c2 \u03c6\u03c9\u03c4\u03b5\u03b9\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03bb\u03b1\u03bc\u03c0\u03c4\u03ae\u03c1\u03c9\u03bd \u03c3\u03c4\u03bf\u03bd \u03c3\u03cd\u03b3\u03c7\u03c1\u03bf\u03bd\u03bf \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03cc, \u03b1\u03bd\u03c4\u03b9\u03ba\u03b1\u03b8\u03b9\u03c3\u03c4\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03c0\u03b1\u03bb\u03b1\u03b9\u03cc\u03c4\u03b5\u03c1\u03b7 \u03ad\u03bd\u03bd\u03bf\u03b9\u03b1 \u00ab\u03ba\u03b1\u03c4\u03b1\u03bd\u03ac\u03bb\u03c9\u03c3\u03b7 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1\u03c2 \u03af\u03c3\u03b7 \u03bc\u03b5 \u03c6\u03c9\u03c4\u03b5\u03b9\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u00bb.<\/p>\n<h2 id=\"2-the-role-of-color-temperature-kelvin-in-lighting\" class=\"mb-2 mt-6 text-base font-&#091;500&#093; first:mt-0 md:text-lg dark:font-&#091;475&#093; &#091;hr+&amp;&#093;:mt-4\"><span class=\"ez-toc-section\" id=\"2_The_Role_of_Color_Temperature_Kelvin_in_Lighting\"><\/span>2. \u039f \u03c1\u03cc\u03bb\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1\u03c2 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 (Kelvin) \u03c3\u03c4\u03bf\u03bd \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03cc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"my-0\"><strong>\u0398\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong>, \u03bc\u03b5\u03c4\u03c1\u03b9\u03ad\u03c4\u03b1\u03b9 \u03c3\u03b5 Kelvin (K), \u03c0\u03b5\u03c1\u03b9\u03b3\u03c1\u03ac\u03c6\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b5\u03bc\u03c6\u03ac\u03bd\u03b9\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c6\u03c9\u03c4\u03cc\u03c2 \u03c0\u03bf\u03c5 \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03bc\u03b9\u03b1 \u03bb\u03ac\u03bc\u03c0\u03b1:<\/p>\n<ul>\n<li class=\"my-0\"><em>\u0396\u03b5\u03c3\u03c4\u03cc \u03bb\u03b5\u03c5\u03ba\u03cc<\/em>\u00a0(2.700K-3.000K): \u0391\u03c0\u03b1\u03bb\u03cc, \u03ba\u03b9\u03c4\u03c1\u03b9\u03bd\u03c9\u03c0\u03cc \u03c6\u03c9\u03c2; \u03b9\u03b4\u03b1\u03bd\u03b9\u03ba\u03cc \u03b3\u03b9\u03b1 \u03c3\u03c0\u03af\u03c4\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03c6\u03b9\u03bb\u03bf\u03be\u03b5\u03bd\u03af\u03b1.<\/li>\n<li class=\"my-0\"><em>\u039f\u03c5\u03b4\u03ad\u03c4\u03b5\u03c1\u03bf \u03bb\u03b5\u03c5\u03ba\u03cc<\/em>\u00a0(3.500K-4.100K): \u0399\u03c3\u03bf\u03c1\u03c1\u03bf\u03c0\u03b7\u03bc\u03ad\u03bd\u03bf, \u03c6\u03c5\u03c3\u03b9\u03ba\u03cc \u03c6\u03c9\u03c2; \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03bf \u03b3\u03b9\u03b1 \u03b3\u03c1\u03b1\u03c6\u03b5\u03af\u03b1 \u03ba\u03b1\u03b9 \u03bb\u03b9\u03b1\u03bd\u03b9\u03ba\u03ae \u03c0\u03ce\u03bb\u03b7\u03c3\u03b7.<\/li>\n<li class=\"my-0\"><em>\u03a8\u03c5\u03c7\u03c1\u03cc \u03bb\u03b5\u03c5\u03ba\u03cc<\/em>\u00a0(5.000K-6.500K): \u039c\u03c0\u03bb\u03b5\u03b6\u03c9\u03c0\u03cc, \u03ba\u03b1\u03b8\u03b1\u03c1\u03cc \u03c6\u03c9\u03c2; \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03c7\u03b5\u03b9\u03c1\u03bf\u03c5\u03c1\u03b3\u03b5\u03af\u03b1, \u03b5\u03c1\u03b3\u03bf\u03c3\u03c4\u03ac\u03c3\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf\u03c5\u03c2 \u03b5\u03be\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03bf\u03cd\u03c2 \u03c7\u03ce\u03c1\u03bf\u03c5\u03c2.<\/li>\n<li class=\"my-0\">\u0397 \u03c3\u03c9\u03c3\u03c4\u03ae \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c4\u03bc\u03cc\u03c3\u03c6\u03b1\u03b9\u03c1\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03c7\u03ce\u03c1\u03bf\u03c5 \u03c0\u03c1\u03bf\u03bf\u03c1\u03b9\u03c3\u03bc\u03bf\u03cd.<\/li>\n<\/ul>\n<h2 id=\"3-how-does-the-color-rendering-index-cri-affect-li\" class=\"mb-2 mt-6 text-base font-&#091;500&#093; first:mt-0 md:text-lg dark:font-&#091;475&#093; &#091;hr+&amp;&#093;:mt-4\"><span class=\"ez-toc-section\" id=\"3_How_Does_the_Color_Rendering_Index_CRI_Affect_Lighting_Quality\"><\/span>3. \u03a0\u03ce\u03c2 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03b5\u03b9 \u03bf \u0394\u03b5\u03af\u03ba\u03c4\u03b7\u03c2 \u0391\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2 \u03a7\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 (CRI) \u03c4\u03b7\u03bd \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03bf\u03cd;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"my-0\">\u03a4\u03bf\u00a0<strong>\u0394\u03b5\u03af\u03ba\u03c4\u03b7 \u0391\u03bd\u03b1\u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2 \u03a7\u03c1\u03c9\u03bc\u03ac\u03c4\u03c9\u03bd (CRI)<\/strong>\u00a0\u03bc\u03b5\u03c4\u03c1\u03ac \u03c4\u03b7\u03bd \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bc\u03b9\u03b1\u03c2 \u03c0\u03b7\u03b3\u03ae\u03c2 \u03c6\u03c9\u03c4\u03cc\u03c2 \u03bd\u03b1 \u03b1\u03c0\u03bf\u03ba\u03b1\u03bb\u03cd\u03c0\u03c4\u03b5\u03b9 \u03c4\u03b1 \u03b1\u03bb\u03b7\u03b8\u03b9\u03bd\u03ac \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03c4\u03c9\u03bd \u03b1\u03bd\u03c4\u03b9\u03ba\u03b5\u03b9\u03bc\u03ad\u03bd\u03c9\u03bd \u03c3\u03b5 \u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf \u03c6\u03c5\u03c3\u03b9\u03ba\u03cc \u03b7\u03bb\u03b9\u03b1\u03ba\u03cc \u03c6\u03c9\u03c2. \u0392\u03b1\u03b8\u03bc\u03bf\u03bb\u03bf\u03b3\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc 0 \u03ad\u03c9\u03c2 100:<\/p>\n<ul>\n<li class=\"my-0\">CRI 80+: \u039a\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03bf \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf\u03c5\u03c2 \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03bf\u03cd\u03c2 \u03c7\u03ce\u03c1\u03bf\u03c5\u03c2.<\/li>\n<li class=\"my-0\">CRI 90+: \u0395\u03be\u03b1\u03b9\u03c1\u03b5\u03c4\u03b9\u03ba\u03cc \u03b3\u03b9\u03b1 \u03c4\u03ad\u03c7\u03bd\u03b7, \u03bb\u03b9\u03b1\u03bd\u03b9\u03ba\u03ae \u03c0\u03ce\u03bb\u03b7\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c7\u03ad\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bd \u03b1\u03ba\u03c1\u03b9\u03b2\u03ae \u03ba\u03c1\u03af\u03c3\u03b7 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2.<\/li>\n<\/ul>\n<p class=\"my-0\"><em>\u03a4\u03b1 \u03c6\u03ce\u03c4\u03b1 \u03bc\u03b5 \u03c5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03bf CRI \u03ba\u03ac\u03bd\u03bf\u03c5\u03bd \u03c4\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03bd\u03b1 \u03c6\u03b1\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c0\u03b9\u03bf \u03b6\u03c9\u03bd\u03c4\u03b1\u03bd\u03ac \u03ba\u03b1\u03b9 \u03c6\u03c5\u03c3\u03b9\u03ba\u03ac.<\/em><\/p>\n<h2 id=\"4-beam-angle-and-choosing-the-right-application\" class=\"mb-2 mt-6 text-base font-&#091;500&#093; first:mt-0 md:text-lg dark:font-&#091;475&#093; &#091;hr+&amp;&#093;:mt-4\"><span class=\"ez-toc-section\" id=\"4_Beam_Angle_and_Choosing_the_Right_Application\"><\/span>4. \u0393\u03c9\u03bd\u03af\u03b1 \u03b4\u03ad\u03c3\u03bc\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c4\u03b7\u03c2 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae\u03c2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"my-0\"><strong>\u0393\u03c9\u03bd\u03af\u03b1 \u03b4\u03ad\u03c3\u03bc\u03b7\u03c2<\/strong>\u00a0\u03c0\u03b5\u03c1\u03b9\u03b3\u03c1\u03ac\u03c6\u03b5\u03b9 \u03c0\u03ce\u03c2 \u03b4\u03b9\u03b1\u03c7\u03ad\u03b5\u03c4\u03b1\u03b9 \u03c4\u03bf \u03c6\u03c9\u03c2 \u03b1\u03c0\u03cc \u03bc\u03b9\u03b1 \u03c0\u03b7\u03b3\u03ae:<\/p>\n<ul>\n<li class=\"my-0\"><em>\u03a3\u03c4\u03b5\u03bd\u03ae \u03b4\u03ad\u03c3\u03bc\u03b7 (10\u00b0-30\u00b0):<\/em>\u00a0\u0395\u03c3\u03c4\u03b9\u03b1\u03c3\u03bc\u03ad\u03bd\u03b7, \u03b3\u03b9\u03b1 \u03c0\u03c1\u03bf\u03b2\u03bf\u03bb\u03b5\u03af\u03c2, \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03cc \u03ad\u03bc\u03c6\u03b1\u03c3\u03b7\u03c2.<\/li>\n<li class=\"my-0\"><em>\u039c\u03b5\u03c3\u03b1\u03af\u03b1 \u03b4\u03ad\u03c3\u03bc\u03b7 (30\u00b0-60\u00b0):<\/em>\u00a0\u0393\u03b5\u03bd\u03b9\u03ba\u03cc\u03c2 \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c7\u03ae\u03c2, \u03c6\u03c9\u03c4\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03bf\u03c1\u03bf\u03c6\u03ae\u03c2.<\/li>\n<li class=\"my-0\"><em>\u0395\u03c5\u03c1\u03b5\u03af\u03b1 \u03b4\u03ad\u03c3\u03bc\u03b7 (60\u00b0+):<\/em>\u00a0\u03a0\u03bb\u03b7\u03bc\u03bc\u03c5\u03c1\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c6\u03c9\u03c4\u03cc\u03c2, \u03bc\u03b5\u03b3\u03ac\u03bb\u03bf\u03b9 \u03c7\u03ce\u03c1\u03bf\u03b9.<\/li>\n<\/ul>\n<p class=\"my-0\">\u0397 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c4\u03b7\u03c2 \u03c3\u03c9\u03c3\u03c4\u03ae\u03c2 \u03b3\u03c9\u03bd\u03af\u03b1\u03c2 \u03b4\u03ad\u03c3\u03bc\u03b7\u03c2 \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03b4\u03bf\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03bf\u03cd \u03ba\u03b1\u03b9 \u03b1\u03bd\u03b1\u03b4\u03b5\u03b9\u03ba\u03bd\u03cd\u03b5\u03b9 \u03c3\u03c9\u03c3\u03c4\u03ac \u03c4\u03b9\u03c2 \u03c3\u03c4\u03bf\u03c7\u03b5\u03c5\u03bc\u03ad\u03bd\u03b5\u03c2 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c7\u03ad\u03c2.<\/p>\n<h2 id=\"5-led-vs-traditional-bulbs\" class=\"mb-2 mt-6 text-base font-&#091;500&#093; first:mt-0 md:text-lg dark:font-&#091;475&#093; &#091;hr+&amp;&#093;:mt-4\"><span class=\"ez-toc-section\" id=\"5_LED_vs_Traditional_Bulbs\"><\/span>5. LED \u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 \u03c0\u03b1\u03c1\u03b1\u03b4\u03bf\u03c3\u03b9\u03b1\u03ba\u03ce\u03bd \u03bb\u03b1\u03bc\u03c0\u03ce\u03bd<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li class=\"my-0\"><strong>\u0395\u03bd\u03b5\u03c1\u03b3\u03b5\u03b9\u03b1\u03ba\u03ae \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7:<\/strong>\u00a0\u03a4\u03b1 LED \u03ba\u03b1\u03c4\u03b1\u03bd\u03b1\u03bb\u03ce\u03bd\u03bf\u03c5\u03bd \u03ad\u03c9\u03c2 \u03ba\u03b1\u03b9 80% \u03bb\u03b9\u03b3\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1.<\/li>\n<li class=\"my-0\"><strong>\u0394\u03b9\u03ac\u03c1\u03ba\u03b5\u03b9\u03b1 \u03b6\u03c9\u03ae\u03c2:<\/strong>\u00a0\u03a4\u03b1 LED (25.000-50.000 \u03ce\u03c1\u03b5\u03c2) \u03b4\u03b9\u03b1\u03c1\u03ba\u03bf\u03cd\u03bd \u03c0\u03bf\u03bb\u03cd \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc \u03c4\u03bf\u03c5\u03c2 \u03bb\u03b1\u03bc\u03c0\u03c4\u03ae\u03c1\u03b5\u03c2 \u03c0\u03c5\u03c1\u03b1\u03ba\u03c4\u03ce\u03c3\u03b5\u03c9\u03c2 \u03ae \u03c6\u03b8\u03bf\u03c1\u03b9\u03c3\u03bc\u03bf\u03cd.<\/li>\n<li class=\"my-0\"><strong>\u0386\u03bc\u03b5\u03c3\u03bf \u03c6\u03c9\u03c2:<\/strong>\u00a0\u03a4\u03b1 LED \u03c6\u03c4\u03ac\u03bd\u03bf\u03c5\u03bd \u03c3\u03c4\u03b7\u03bd \u03c0\u03bb\u03ae\u03c1\u03b7 \u03c6\u03c9\u03c4\u03b5\u03b9\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b1\u03bc\u03ad\u03c3\u03c9\u03c2.<\/li>\n<li class=\"my-0\"><strong>\u03a0\u03b5\u03c1\u03b9\u03b2\u03b1\u03bb\u03bb\u03bf\u03bd\u03c4\u03b9\u03ba\u03cc\u03c2 \u03b1\u03bd\u03c4\u03af\u03ba\u03c4\u03c5\u03c0\u03bf\u03c2:<\/strong>\u00a0\u03a4\u03b1 LED \u03b4\u03b5\u03bd \u03c0\u03b5\u03c1\u03b9\u03ad\u03c7\u03bf\u03c5\u03bd \u03c5\u03b4\u03c1\u03ac\u03c1\u03b3\u03c5\u03c1\u03bf \u03ba\u03b1\u03b9 \u03b5\u03ba\u03c0\u03ad\u03bc\u03c0\u03bf\u03c5\u03bd \u03bb\u03b9\u03b3\u03cc\u03c4\u03b5\u03c1\u03bf CO\u2082.<\/li>\n<\/ul>\n<p class=\"my-0\">\u0397 \u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03c3\u03b5 LED \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03bf \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c0\u03b5\u03c1\u03b9\u03b2\u03b1\u03bb\u03bb\u03bf\u03bd\u03c4\u03b9\u03ba\u03cc \u03b1\u03c0\u03bf\u03c4\u03cd\u03c0\u03c9\u03bc\u03b1.<\/p>\n<h2 id=\"6-what-is-ugr-unified-glare-rating\" class=\"mb-2 mt-6 text-base font-&#091;500&#093; first:mt-0 md:text-lg dark:font-&#091;475&#093; &#091;hr+&amp;&#093;:mt-4\"><span class=\"ez-toc-section\" id=\"6_What_is_UGR_Unified_Glare_Rating\"><\/span>6. \u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf UGR (\u0395\u03bd\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b7 \u0392\u03b1\u03b8\u03bc\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u0398\u03ac\u03bc\u03b2\u03c9\u03c3\u03b7\u03c2);<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"my-0\"><strong>UGR<\/strong>\u00a0(\u0395\u03bd\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b7 \u0392\u03b1\u03b8\u03bc\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u0398\u03ac\u03bc\u03b2\u03c9\u03c3\u03b7\u03c2) \u03bc\u03b5\u03c4\u03c1\u03ac\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b5\u03bd\u03cc\u03c7\u03bb\u03b7\u03c3\u03b7 \u03b1\u03c0\u03cc \u03b8\u03ac\u03bc\u03b2\u03c9\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03b5\u03b3\u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03bf\u03cd.<\/p>\n<ul>\n<li class=\"my-0\">\u039a\u03ac\u03b8\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc 10 (\u03b1\u03cc\u03c1\u03b1\u03c4\u03bf) \u03ad\u03c9\u03c2 30 (\u03b5\u03bd\u03bf\u03c7\u03bb\u03b7\u03c4\u03b9\u03ba\u03cc).<\/li>\n<li class=\"my-0\">\u039f \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03cc\u03c2 \u03b3\u03c1\u03b1\u03c6\u03b5\u03af\u03bf\u03c5 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03ad\u03c7\u03b5\u03b9 UGR &lt;19.<\/li>\n<\/ul>\n<p class=\"my-0\">\u03a7\u03b1\u03bc\u03b7\u03bb\u03cc UGR \u03b5\u03bb\u03b1\u03c7\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03c0\u03cc\u03bd\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03bc\u03b1\u03c4\u03b9\u03ce\u03bd \u03ba\u03b1\u03b9 \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03ac\u03bd\u03b5\u03c3\u03b7.<\/p>\n<h2 id=\"7-the-significance-of-ip-ratings-in-waterproof-and\" class=\"mb-2 mt-6 text-base font-&#091;500&#093; first:mt-0 md:text-lg dark:font-&#091;475&#093; &#091;hr+&amp;&#093;:mt-4\"><span class=\"ez-toc-section\" id=\"7_The_Significance_of_IP_Ratings_in_Waterproof_and_Dustproof_Fixtures\"><\/span>7. \u0397 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1 \u03c4\u03c9\u03bd \u03b2\u03b1\u03b8\u03bc\u03bf\u03bb\u03bf\u03b3\u03b9\u03ce\u03bd IP \u03c3\u03b5 \u03b1\u03b4\u03b9\u03ac\u03b2\u03c1\u03bf\u03c7\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03b8\u03b5\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c4\u03b7 \u03c3\u03ba\u03cc\u03bd\u03b7 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ad\u03c2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"my-0\"><strong>\u0392\u03b1\u03b8\u03bc\u03cc\u03c2 IP<\/strong>\u00a0(<\/p>\n<ul>\n<li class=\"my-0\">\u0394\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c0\u03cc\u03c3\u03bf \u03ba\u03b1\u03bb\u03ac \u03b1\u03bd\u03c4\u03ad\u03c7\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ae \u03c3\u03ba\u03cc\u03bd\u03b7 \u03ba\u03b1\u03b9 \u03bd\u03b5\u03c1\u03cc.<\/li>\n<li class=\"my-0\">IP65: \u0391\u03b4\u03b9\u03ac\u03b2\u03c1\u03bf\u03c7\u03bf \u03ba\u03b1\u03b9 \u03b1\u03bd\u03b8\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc \u03c3\u03c4\u03b7 \u03c3\u03ba\u03cc\u03bd\u03b7\u2014\u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03bf \u03b3\u03b9\u03b1 \u03b5\u03be\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03bf\u03cd\u03c2 \u03c7\u03ce\u03c1\u03bf\u03c5\u03c2.<\/li>\n<\/ul>\n<p class=\"my-0\">IP44: \u03a0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c3\u03af\u03b1 \u03b1\u03c0\u03cc \u03c3\u03c4\u03b5\u03c1\u03b5\u03ac \u03b1\u03bd\u03c4\u03b9\u03ba\u03b5\u03af\u03bc\u03b5\u03bd\u03b1 &gt;1mm \u03ba\u03b1\u03b9 \u03c0\u03b9\u03c4\u03c3\u03b9\u03bb\u03af\u03c3\u03bc\u03b1\u03c4\u03b1 \u03bd\u03b5\u03c1\u03bf\u03cd\u2014\u03ba\u03b1\u03bb\u03cc \u03b3\u03b9\u03b1 \u03bc\u03c0\u03ac\u03bd\u03b9\u03b1.<\/p>\n<h2 id=\"8-understanding-the-relationship-between-watt-and\" class=\"mb-2 mt-6 text-base font-&#091;500&#093; first:mt-0 md:text-lg dark:font-&#091;475&#093; &#091;hr+&amp;&#093;:mt-4\"><span class=\"ez-toc-section\" id=\"8_Understanding_the_Relationship_Between_Watt_and_Brightness\"><\/span>8. \u039a\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c3\u03c7\u03ad\u03c3\u03b7\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd Watt \u03ba\u03b1\u03b9 \u03c6\u03c9\u03c4\u03b5\u03b9\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"my-0\"><strong>Watt<\/strong>\u00a0\u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03b7 \u03b2\u03b1\u03b8\u03bc\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 IP \u03b3\u03b9\u03b1 \u03b1\u03bd\u03b8\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1 \u03c3\u03b5 \u03b4\u03cd\u03c3\u03ba\u03bf\u03bb\u03b1 \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03b1.<\/p>\n<ul>\n<li class=\"my-0\">\u03bc\u03b5\u03c4\u03c1\u03ac\u03b5\u03b9 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03bd\u03ac\u03bb\u03c9\u03c3\u03b7 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1\u03c2\u2014\u03cc\u03c7\u03b9 \u03c4\u03bf \u03c6\u03c9\u03c2. \u039b\u03cc\u03b3\u03c9 \u03b5\u03be\u03b5\u03bb\u03af\u03be\u03b5\u03c9\u03bd \u03c3\u03c4\u03b7\u03bd \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b1:<\/li>\n<li class=\"my-0\">LED 10W \u2248 \u03bb\u03b1\u03bc\u03c0\u03ac\u03ba\u03b9 \u03c0\u03c5\u03c1\u03b1\u03ba\u03c4\u03ce\u03c3\u03b5\u03c9\u03c2 60W \u03c3\u03b5 \u03c6\u03c9\u03c4\u03b5\u03b9\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1.<\/li>\n<\/ul>\n<p class=\"my-0\">\u03a0\u03ac\u03bd\u03c4\u03b1 \u03b5\u03bb\u03ad\u03b3\u03c7\u03b5\u03c4\u03b5 \u03c4\u03b1 lumen \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03c6\u03c9\u03c4\u03cc\u03c2.<\/p>\n<h2 id=\"9-what-is-power-factor\" class=\"mb-2 mt-6 text-base font-&#091;500&#093; first:mt-0 md:text-lg dark:font-&#091;475&#093; &#091;hr+&amp;&#093;:mt-4\"><span class=\"ez-toc-section\" id=\"9_What_is_Power_Factor\"><\/span>9. \u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf \u03a3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u0399\u03c3\u03c7\u03cd\u03bf\u03c2;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"my-0\"><strong>\u0391\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bb\u03ac\u03bc\u03c0\u03b5\u03c2 \u03c0\u03b1\u03c1\u03ad\u03c7\u03bf\u03c5\u03bd \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf \u03c6\u03c9\u03c2 \u03bc\u03b5 \u03bb\u03b9\u03b3\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1.<\/strong>\u00a0\u03a0\u03b1\u03c1\u03b1\u03b3\u03bf\u03bd\u03c4\u03b9\u03ba\u03cc\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2<\/p>\n<ul>\n<li class=\"my-0\">(PF) \u03b4\u03b5\u03af\u03c7\u03bd\u03b5\u03b9 \u03c0\u03cc\u03c3\u03bf \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5\u03c4\u03b1\u03c4\u03c1\u03ad\u03c0\u03b5\u03c4\u03b1\u03b9 \u03b7 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ae \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03c3\u03b5 \u03c7\u03c1\u03ae\u03c3\u03b9\u03bc\u03bf \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03cc:<\/li>\n<li class=\"my-0\">\u039a\u03ac\u03b8\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc 0 \u03ad\u03c9\u03c2 1; \u03bf\u03b9 \u03c5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03bf\u03b9 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03af \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf\u03b9.<\/li>\n<\/ul>\n<h2 id=\"10-differences-between-ac-and-dc-lighting-fixtures\" class=\"mb-2 mt-6 text-base font-&#091;500&#093; first:mt-0 md:text-lg dark:font-&#091;475&#093; &#091;hr+&amp;&#093;:mt-4\"><span class=\"ez-toc-section\" id=\"10_Differences_Between_AC_and_DC_Lighting_Fixtures\"><\/span>10. \u0394\u03b9\u03b1\u03c6\u03bf\u03c1\u03ad\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ce\u03bd \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03bf\u03cd AC \u03ba\u03b1\u03b9 DC<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li class=\"my-0\"><strong>PF &gt;0.9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b9\u03b4\u03b1\u03bd\u03b9\u03ba\u03cc \u03b3\u03b9\u03b1 \u03b5\u03bc\u03c0\u03bf\u03c1\u03b9\u03ba\u03ae \u03c7\u03c1\u03ae\u03c3\u03b7\u2014\u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03c0\u03bf\u03c6\u03b5\u03cd\u03b3\u03b5\u03b9 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ad\u03c2 \u03c0\u03bf\u03b9\u03bd\u03ad\u03c2.<\/strong>\u00a0AC (\u0395\u03bd\u03b1\u03bb\u03bb\u03b1\u03c3\u03c3\u03cc\u03bc\u03b5\u03bd\u03b7 \u03a1\u03b5\u03cd\u03bc\u03b1):<\/li>\n<li class=\"my-0\"><strong>\u039f\u03b9 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03bf\u03b9\u03ba\u03b9\u03b1\u03ba\u03ad\u03c2 \u03c0\u03b1\u03c1\u03bf\u03c7\u03ad\u03c2 \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2; \u03c3\u03c5\u03bc\u03b2\u03b1\u03c4\u03cc \u03bc\u03b5 \u03c4\u03b7\u03bd \u03bf\u03b9\u03ba\u03b9\u03b1\u03ba\u03ae \u03ba\u03b1\u03bb\u03c9\u03b4\u03af\u03c9\u03c3\u03b7.<\/strong>\u00a0\u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b7\u03bb\u03b9\u03b1\u03ba\u03bf\u03cd\u03c2 \u03c3\u03c5\u03bb\u03bb\u03ad\u03ba\u03c4\u03b5\u03c2, \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03b1, \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 LED\u00b7 \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bd \u03bc\u03b5\u03c4\u03b1\u03c4\u03c1\u03bf\u03c0\u03b5\u03af\u03c2 \u03ae \u03b1\u03c0\u03bf\u03ba\u03bb\u03b5\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc \u03ba\u03c5\u03ba\u03bb\u03c9\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc.<\/li>\n<\/ul>\n<p class=\"my-0\">\u0397 \u03c3\u03c9\u03c3\u03c4\u03ae \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03bf\u03af\u03c7\u03b9\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c0\u03b7\u03b3\u03ae\u03c2 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1\u03c2 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03b2\u03ad\u03bb\u03c3\u03c4\u03b7 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7.<\/p>\n<p class=\"my-0\">\u039a\u03b1\u03c4\u03b1\u03bd\u03bf\u03ce\u03bd\u03c4\u03b1\u03c2 \u03b1\u03c5\u03c4\u03ad\u03c2 \u03c4\u03b9\u03c2 \u03b4\u03ad\u03ba\u03b1 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ad\u03c2 \u03b1\u03c1\u03c7\u03ad\u03c2 \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03bf\u03cd, \u03b5\u03af\u03c3\u03c4\u03b5 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b1 \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf\u03b9 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03bb\u03ad\u03be\u03b5\u03c4\u03b5 \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03cc \u03c0\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03bf\u03b4\u03bf\u03c4\u03b9\u03ba\u03cc\u03c2, \u03ac\u03bd\u03b5\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03bf\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03b1\u03bd\u03ac\u03b3\u03ba\u03b5\u03c2 \u03c3\u03b1\u03c2. \u0391\u03c0\u03bf\u03ba\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c0\u03b9\u03bf \u03c6\u03c9\u03c4\u03b5\u03b9\u03bd\u03ad\u03c2 \u03b9\u03b4\u03ad\u03b5\u03c2\u2014\u03ba\u03ac\u03bd\u03c4\u03b5 \u03c4\u03bf \u03b5\u03c0\u03cc\u03bc\u03b5\u03bd\u03bf \u03ad\u03c1\u03b3\u03bf \u03c6\u03c9\u03c4\u03b9\u03c3\u03bc\u03bf\u03cd \u03c3\u03b1\u03c2 \u03b5\u03c0\u03b9\u03c4\u03c5\u03c7\u03af\u03b1!<\/p>\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":5290,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-5289","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-business"],"_links":{"self":[{"href":"https:\/\/prillumen.com\/el\/wp-json\/wp\/v2\/posts\/5289","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prillumen.com\/el\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prillumen.com\/el\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prillumen.com\/el\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prillumen.com\/el\/wp-json\/wp\/v2\/comments?post=5289"}],"version-history":[{"count":2,"href":"https:\/\/prillumen.com\/el\/wp-json\/wp\/v2\/posts\/5289\/revisions"}],"predecessor-version":[{"id":5292,"href":"https:\/\/prillumen.com\/el\/wp-json\/wp\/v2\/posts\/5289\/revisions\/5292"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prillumen.com\/el\/wp-json\/wp\/v2\/media\/5290"}],"wp:attachment":[{"href":"https:\/\/prillumen.com\/el\/wp-json\/wp\/v2\/media?parent=5289"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prillumen.com\/el\/wp-json\/wp\/v2\/categories?post=5289"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prillumen.com\/el\/wp-json\/wp\/v2\/tags?post=5289"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}