{"id":17542,"date":"2026-09-10T21:00:00","date_gmt":"2026-09-10T13:00:00","guid":{"rendered":"https:\/\/www.wehopower.com\/?post_type=news&p=17542"},"modified":"2026-09-10T21:00:00","modified_gmt":"2026-09-10T13:00:00","slug":"power-factor-correction-power-supply-explained","status":"publish","type":"news","link":"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/","title":{"rendered":"Power Factor Correction in Power Supplies Explained"},"content":{"rendered":"<p class=\"weho-last-updated\" style=\"text-align:center;color:#E60013\">Last Updated: 2026-09-08<\/p>\n<blockquote class=\"weho-quick-answer\">\n<p>power factor correction power supply selection matters when equipment must draw cleaner AC input current and reduce wasted apparent power. PFC does not make the DC load smaller, but it can improve input-side efficiency behavior, breaker loading, generator compatibility, and installation planning for LED drivers, industrial cabinets, and high-power systems.<\/p>\n<\/blockquote>\n<figure class=\"weho-blog-image weho-blog-hero\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/01-hero-25.png?quality=85&strip=all\" alt=\"WEHO HLG-150-24 LED power supply with PFC on a test bench with power analyzer display\" title=\"WEHO HLG-150-24 LED power supply with PFC on a test bench with power analyzer display\" width=\"1536\" height=\"1024\" class=\"alignnone size-full wp-image-17537\" srcset=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/01-hero-25.png?quality=85&strip=all 1536w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/01-hero-25-300x200.png?quality=85&strip=all 300w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/01-hero-25-1024x683.png?quality=85&strip=all 1024w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/01-hero-25-768x512.png?quality=85&strip=all 768w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/01-hero-25-18x12.png?quality=85&strip=all 18w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 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\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/#power_factor_correction_power_supply_basics\" >power factor correction power supply basics<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/#Why_PFC_affects_input_current\" >Why PFC affects input current<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/#Where_a_PFC_supply_is_useful\" >Where a PFC supply is useful<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/#Check_power_factor_together_with_efficiency_and_heat\" >Check power factor together with efficiency and heat<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/#Avoid_common_PFC_selection_mistakes\" >Avoid common PFC selection mistakes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/#PFC_selection_checklist\" >PFC selection checklist<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/#FAQs\" >FAQs<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/#What_does_PFC_mean_in_a_power_supply\" >What does PFC mean in a power supply?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/#Does_PFC_change_the_DC_output_voltage\" >Does PFC change the DC output voltage?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/#When_should_I_choose_a_power_factor_correction_power_supply\" >When should I choose a power factor correction power supply?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/#Is_active_PFC_the_same_as_higher_efficiency\" >Is active PFC the same as higher efficiency?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/#Do_LED_drivers_often_use_PFC\" >Do LED drivers often use PFC?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/#What_details_should_I_send_WEHO_for_PFC_model_selection\" >What details should I send WEHO for PFC model selection?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/#Key_Takeaways\" >Key Takeaways<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.wehopower.com\/tl\/news\/power-factor-correction-power-supply-explained\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"power_factor_correction_power_supply_basics\"><\/span>power factor correction power supply basics<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure class=\"weho-blog-image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/02-technical-diagram-26.png?quality=85&strip=all\" alt=\"Power factor correction path from AC input through PFC stage to regulated DC output and LED load\" title=\"Power factor correction path from AC input through PFC stage to regulated DC output and LED load\" width=\"1536\" height=\"1024\" class=\"alignnone size-full wp-image-17538\" loading=\"lazy\" srcset=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/02-technical-diagram-26.png?quality=85&strip=all 1536w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/02-technical-diagram-26-300x200.png?quality=85&strip=all 300w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/02-technical-diagram-26-1024x683.png?quality=85&strip=all 1024w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/02-technical-diagram-26-768x512.png?quality=85&strip=all 768w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/02-technical-diagram-26-18x12.png?quality=85&strip=all 18w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n<p>A &lt;strong&gt;power factor correction power supply&lt;\/strong&gt; is designed to manage how current is drawn from the AC input. In simple terms, the supply still converts AC input into regulated DC output, but its input stage is arranged to reduce the gap between real power and apparent power. That matters when many supplies share one circuit, when breakers are close to their limit, or when the installation uses a generator or long feeder.<\/p>\n<p>PFC does not mean the connected load suddenly needs less DC wattage. A 150W LED or control load still needs a supply sized for voltage, current, heat, duty cycle, wiring, and derating. PFC helps the input side behave more cleanly, so the AC system can be planned with fewer surprises.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_PFC_affects_input_current\"><\/span>Why PFC affects input current<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure class=\"weho-blog-image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/03-product-23.png?quality=85&strip=all\" alt=\"Exact WEHO HLG-150-24 waterproof LED power supply product photo with PFC label details\" title=\"Exact WEHO HLG-150-24 waterproof LED power supply product photo with PFC label details\" width=\"1536\" height=\"1024\" class=\"alignnone size-full wp-image-17539\" loading=\"lazy\" srcset=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/03-product-23.png?quality=85&strip=all 1536w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/03-product-23-300x200.png?quality=85&strip=all 300w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/03-product-23-1024x683.png?quality=85&strip=all 1024w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/03-product-23-768x512.png?quality=85&strip=all 768w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/03-product-23-18x12.png?quality=85&strip=all 18w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n<p>Without correction, some switching supplies draw current in short peaks rather than a smooth waveform. The supply may deliver the required DC output, but the AC line can see higher RMS current, extra heating in conductors, and less predictable loading when many devices start together.<\/p>\n<p>With PFC, the input current is shaped closer to the input voltage waveform. That can reduce unnecessary apparent current and make circuit planning easier. In lighting cabinets, signage, machinery, and distributed power systems, the difference becomes more important as the number of supplies increases.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Where_a_PFC_supply_is_useful\"><\/span>Where a PFC supply is useful<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure class=\"weho-blog-image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/05-application-25.png?quality=85&strip=all\" alt=\"WEHO HLG-150-24 LED power supply used in an LED signage installation checklist scene\" title=\"WEHO HLG-150-24 LED power supply used in an LED signage installation checklist scene\" width=\"1536\" height=\"1024\" class=\"alignnone size-full wp-image-17541\" loading=\"lazy\" srcset=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/05-application-25.png?quality=85&strip=all 1536w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/05-application-25-300x200.png?quality=85&strip=all 300w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/05-application-25-1024x683.png?quality=85&strip=all 1024w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/05-application-25-768x512.png?quality=85&strip=all 768w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/05-application-25-18x12.png?quality=85&strip=all 18w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n<p>Waterproof LED drivers, cabinet power modules, and higher-wattage AC\/DC supplies are common places to review PFC. For example, the <a href=\"https:\/\/www.wehopower.com\/product\/hlg-150-150w-12v-24v-36v-48v-waterproof-ip67-led-power-supply-with-pfc\/\">WEHO HLG-150 LED power supply with PFC<\/a> is a relevant product-family reference when the installation needs sealed construction and improved input-side behavior.<\/p>\n<p>PFC is especially useful when project drawings limit input current, when the site uses many parallel lighting branches, or when the power source is not a stiff utility feed. It also helps designers compare supplies using more than output wattage alone.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Check_power_factor_together_with_efficiency_and_heat\"><\/span>Check power factor together with efficiency and heat<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure class=\"weho-blog-image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/04-installation-27.png?quality=85&strip=all\" alt=\"WEHO HLG-150-24 LED driver detail image showing waterproof cable exits and product label\" title=\"WEHO HLG-150-24 LED driver detail image showing waterproof cable exits and product label\" width=\"1536\" height=\"1024\" class=\"alignnone size-full wp-image-17540\" loading=\"lazy\" srcset=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/04-installation-27.png?quality=85&strip=all 1536w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/04-installation-27-300x200.png?quality=85&strip=all 300w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/04-installation-27-1024x683.png?quality=85&strip=all 1024w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/04-installation-27-768x512.png?quality=85&strip=all 768w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/04-installation-27-18x12.png?quality=85&strip=all 18w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n<p>Power factor and efficiency should not be treated as the same number. Power factor describes how effectively AC input current is used. Efficiency describes how much input power becomes usable DC output instead of heat. A good selection checks both, then adds ambient temperature, mounting surface, airflow, and enclosure conditions.<\/p>\n<p>If the supply is mounted in a sealed sign box, narrow machine bay, or outdoor housing, heat may become the limiting factor before the printed wattage does. PFC does not remove the need for derating. Use the exact datasheet and real installation temperature before final selection.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Avoid_common_PFC_selection_mistakes\"><\/span>Avoid common PFC selection mistakes<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Do not choose a supply only because a label mentions PFC. Confirm the input voltage range, output rating, protection behavior, cable type, sealing level, and installation position. Also check whether the load has dimming, surge, motor, or capacitive behavior that changes startup current.<\/p>\n<p>For multi-supply systems, add the input current of all supplies and consider startup timing. A power factor correction power supply can improve the input-current profile, but the breaker, cable, connector, and upstream control device still need to match the real system.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"PFC_selection_checklist\"><\/span>PFC selection checklist<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>List the output voltage, output current, continuous wattage, peak demand, ambient temperature, enclosure type, and input voltage first. Then compare power factor, efficiency, protection, case style, cable exit, and mounting needs. Finally, test one sample under actual load before scaling to a full cabinet or lighting run.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>FAQs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"weho-visible-faq\">\n<h3><span class=\"ez-toc-section\" id=\"What_does_PFC_mean_in_a_power_supply\"><\/span>What does PFC mean in a power supply?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>PFC means power factor correction. It shapes the AC input current so the supply draws power from the grid more efficiently on the input side, especially in higher-power equipment.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Does_PFC_change_the_DC_output_voltage\"><\/span>Does PFC change the DC output voltage?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No. PFC is mainly an input-side function. The DC output voltage and current still need to be selected from the real load requirement and the product datasheet.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"When_should_I_choose_a_power_factor_correction_power_supply\"><\/span>When should I choose a power factor correction power supply?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Choose a power factor correction power supply when the installation has higher input current, many supplies on one circuit, generator use, or project requirements for improved input current behavior.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Is_active_PFC_the_same_as_higher_efficiency\"><\/span>Is active PFC the same as higher efficiency?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Not exactly. PFC and conversion efficiency are related to power quality and losses in different ways. A supply can have PFC and still needs its efficiency, thermal, and derating data checked.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Do_LED_drivers_often_use_PFC\"><\/span>Do LED drivers often use PFC?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Many medium and high-power LED drivers include PFC because large lighting installations may place many drivers on the same AC circuit and need controlled input current behavior.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_details_should_I_send_WEHO_for_PFC_model_selection\"><\/span>What details should I send WEHO for PFC model selection?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Send input voltage, output voltage, load current, installation quantity, ambient temperature, enclosure condition, dimming or control needs, and any project requirements for input current or power factor.<\/p>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Key_Takeaways\"><\/span>Key Takeaways<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>PFC improves AC input-current behavior; it does not reduce the DC load requirement.<\/li>\n<li>Power factor and conversion efficiency are different checks and both matter.<\/li>\n<li>Many LED driver and high-power supply applications benefit from PFC review.<\/li>\n<li>Enclosure heat, ambient temperature, and derating still control final model choice.<\/li>\n<li>Always size the supply from real load current, not from the PFC label alone.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A &lt;strong&gt;power factor correction power supply&lt;\/strong&gt; is useful when input current quality matters, especially in higher-power lighting, cabinet, and equipment systems. Start with the DC load, then check input current, power factor, efficiency, protection, heat, and mounting. For model matching, review the WEHO product page, email &lt;a href=&#8221;mailto:sarayu@chnwh.com&#8221;&gt;sarayu@chnwh.com&lt;\/a&gt;, or use the <a href=\"https:\/\/www.wehopower.com\/contact\/\">WEHO contact page<\/a> with the input, output, quantity, and installation details.<\/p>\n<div class=\"weho-article-cta\">\n<p>Review the <a href=\"https:\/\/www.wehopower.com\/product\/hlg-150-150w-12v-24v-36v-48v-waterproof-ip67-led-power-supply-with-pfc\/\">relevant WEHO product category<\/a>, email <a href=\"mailto:sarayu@chnwh.com\">sarayu@chnwh.com<\/a>, or <a href=\"https:\/\/www.wehopower.com\/contact\/\">contact WEHO<\/a> with the input voltage, output load, ambient temperature, and installation details.<\/p>\n<\/div>\n<p><script type=\"application\/ld+json\" class=\"weho-faq-schema\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What does PFC mean in a power supply?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"PFC means power factor correction. It shapes the AC input current so the supply draws power from the grid more efficiently on the input side, especially in higher-power equipment.\"}},{\"@type\":\"Question\",\"name\":\"Does PFC change the DC output voltage?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. PFC is mainly an input-side function. The DC output voltage and current still need to be selected from the real load requirement and the product datasheet.\"}},{\"@type\":\"Question\",\"name\":\"When should I choose a power factor correction power supply?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Choose a power factor correction power supply when the installation has higher input current, many supplies on one circuit, generator use, or project requirements for improved input current behavior.\"}},{\"@type\":\"Question\",\"name\":\"Is active PFC the same as higher efficiency?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Not exactly. PFC and conversion efficiency are related to power quality and losses in different ways. A supply can have PFC and still needs its efficiency, thermal, and derating data checked.\"}},{\"@type\":\"Question\",\"name\":\"Do LED drivers often use PFC?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Many medium and high-power LED drivers include PFC because large lighting installations may place many drivers on the same AC circuit and need controlled input current behavior.\"}},{\"@type\":\"Question\",\"name\":\"What details should I send WEHO for PFC model selection?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Send input voltage, output voltage, load current, installation quantity, ambient temperature, enclosure condition, dimming or control needs, and any project requirements for input current or power factor.\"}}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>power factor correction power supply guide covering input current, apparent power, PFC circuits, LED drivers, sizing, heat, and compliance checks.<\/p>","protected":false},"author":1,"featured_media":17537,"parent":0,"menu_order":1,"comment_status":"","ping_status":"","template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"news_category":[149,148],"class_list":["post-17542","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_category-blog","news_category-industry-news","entry"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.wehopower.com\/tl\/wp-json\/wp\/v2\/news\/17542","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/tl\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.wehopower.com\/tl\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/tl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/tl\/wp-json\/wp\/v2\/comments?post=17542"}],"version-history":[{"count":1,"href":"https:\/\/www.wehopower.com\/tl\/wp-json\/wp\/v2\/news\/17542\/revisions"}],"predecessor-version":[{"id":17556,"href":"https:\/\/www.wehopower.com\/tl\/wp-json\/wp\/v2\/news\/17542\/revisions\/17556"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/tl\/wp-json\/wp\/v2\/media\/17537"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/tl\/wp-json\/wp\/v2\/media?parent=17542"}],"wp:term":[{"taxonomy":"news_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/tl\/wp-json\/wp\/v2\/news_category?post=17542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}