{"id":96,"date":"2010-01-08T14:03:43","date_gmt":"2010-01-08T19:03:43","guid":{"rendered":"http:\/\/blog.hilltech.com\/?p=96"},"modified":"2022-04-06T21:24:31","modified_gmt":"2022-04-07T02:24:31","slug":"class-ii-led-power-supplies-with-277-vac-input","status":"publish","type":"post","link":"https:\/\/blog.hilltech.com\/?p=96","title":{"rendered":"Class II LED Power Supplies with 277 VAC input"},"content":{"rendered":"<p>ARLINGTON HEIGHTS, ILLINOIS, USA, Friday, January 08, 2010: Hill Tech Sales, a leader in LED Components and Components for Electrical Power Conversion today posted information on 277VAC input rated <a href=\"http:\/\/www.hilltech.com\/products\/power_components\/LEDPowerSupplies.html\">LED Drivers for Class II<\/a> outdoor lighting.<\/p>\n<p>When using LED lighting in new installations LED drivers\/LED power supplies with\u00a0 standard universal <a href=\"http:\/\/hilltech.com\/products\/power_components\/LEDPowerSupplies.html#Input277\">input of 90 ~ 264VAC<\/a> are not an issue since you can specify the specific voltage needed up front.<\/p>\n<p>However, in many existing buildings that have dedicated electrical panels for lighting these are rated at 277VAC. In these installations LED lighting is typically not replacing all of the existing lighting. This means in these in cases in order to use these LED drivers you need a new circuit to supply 120VACVAC and a <a href=\"http:\/\/www.hilltech.com\/products\/power_components\/TransformersandInductors.html#stepupdw\">step down transformer<\/a> to reduce the voltage from 277 to 120VAC.<\/p>\n<p>New Class II LED Power Supplies are now coming on the market with wide ranging universal input of 90 &#8211; 277VAC which can be used on existing 277VAC lighting circuits with no voltage modification required.<\/p>\n<p>Other features now standard on most LED Drivers are:<\/p>\n<ul>\n<li>Highly Efficient Switching-Mode Technology<\/li>\n<li>Active PFC (Power Factor Corrected)<\/li>\n<li>Built For Outdoor Wet, Damp or Indoor Dry Applications<\/li>\n<li>Silicone Encapsulated for Wet Locations (Use UL approved Water-Tight Conduit and Fittings)<\/li>\n<li>Built-in EMI Filter for Low Noise<\/li>\n<li>Rugged Rain-Proof Aluminum Extruded Case &#8211; IP65 Rated<\/li>\n<li>Over-Current and Over-Voltage Protection with Auto-Recovery<\/li>\n<li>Output Voltage Adjustable.<\/li>\n<\/ul>\n<p>For adverse environments it also important to look for LED Drivers rated at 70\u00b0C at full load. Many LED Power supply de-rate to as little as 50% of rated power at 50\u00b0C.<\/p>\n<p>For more questions on this article contact:<\/p>\n<p>Vince Hill<br \/>\nLED Specialist<br \/>\nHill Technical Sales<br \/>\n216 West Campus Drive<br \/>\nArlington Heights, IL 60004\u00a0\u00a0\u00a0<br \/>\nTel: +1- 847-255-4400\u00a0 ext 12<br \/>\nFax: +1-847-255-0192\u00a0\u00a0\u00a0\u00a0<\/p>\n<p>You may also visit: <a href=\"http:\/\/www.hilltech.com\/\">http:\/\/www.hilltech.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>in many existing buildings that have dedicated electrical panels for lighting these are rated at 277VAC. In these installations LED lighting is typically not replacing all of the existing lighting. This means in these in cases in order to use these LED drivers you need a new circuit to supply 120VACVAC and a <a href=\"https:\/\/blog.hilltech.com\/?p=96\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[178,179],"tags":[199],"class_list":["post-96","post","type-post","status-publish","format-standard","hentry","category-news_hill_tech","category-product_announcements_hill_tech","tag-led-lighting"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Class II LED Power Supplies with 277 VAC input -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.hilltech.com\/?p=96\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Class II LED Power Supplies with 277 VAC input -\" \/>\n<meta property=\"og:description\" content=\"in many existing buildings that have dedicated electrical panels for lighting these are rated at 277VAC. In these installations LED lighting is typically not replacing all of the existing lighting. This means in these in cases in order to use these LED drivers you need a new circuit to supply 120VACVAC and a Continue reading &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blog.hilltech.com\/?p=96\" \/>\n<meta property=\"og:site_name\" content=\"Hill Technical Sales Blog\" \/>\n<meta property=\"article:published_time\" content=\"2010-01-08T19:03:43+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-04-07T02:24:31+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/blog.hilltech.com\/?p=96#article\",\"isPartOf\":{\"@id\":\"https:\/\/blog.hilltech.com\/?p=96\"},\"author\":{\"name\":\"\",\"@id\":\"\"},\"headline\":\"Class II LED Power Supplies with 277 VAC input\",\"datePublished\":\"2010-01-08T19:03:43+00:00\",\"dateModified\":\"2022-04-07T02:24:31+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/blog.hilltech.com\/?p=96\"},\"wordCount\":302,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/blog.hilltech.com\/#organization\"},\"keywords\":[\"LED lighting\"],\"articleSection\":[\"News\",\"Product Announcements\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/blog.hilltech.com\/?p=96#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blog.hilltech.com\/?p=96\",\"url\":\"https:\/\/blog.hilltech.com\/?p=96\",\"name\":\"Class II LED Power Supplies with 277 VAC input -\",\"isPartOf\":{\"@id\":\"https:\/\/blog.hilltech.com\/#website\"},\"datePublished\":\"2010-01-08T19:03:43+00:00\",\"dateModified\":\"2022-04-07T02:24:31+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/blog.hilltech.com\/?p=96#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blog.hilltech.com\/?p=96\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/blog.hilltech.com\/?p=96#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/blog.hilltech.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Class II LED Power Supplies with 277 VAC input\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blog.hilltech.com\/#website\",\"url\":\"https:\/\/blog.hilltech.com\/\",\"name\":\"Hill Technical Sales Blog\",\"description\":\"Your source for all your Power, Thermal Management and Imaging needs\",\"publisher\":{\"@id\":\"https:\/\/blog.hilltech.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/blog.hilltech.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/blog.hilltech.com\/#organization\",\"name\":\"Hill Sales Corp\",\"alternateName\":\"Hill Technical Sales\",\"url\":\"https:\/\/blog.hilltech.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/blog.hilltech.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/blog.hilltech.com\/wp-content\/uploads\/2016\/10\/Site-Icon-Hill-Tech-2.jpg\",\"contentUrl\":\"https:\/\/blog.hilltech.com\/wp-content\/uploads\/2016\/10\/Site-Icon-Hill-Tech-2.jpg\",\"width\":512,\"height\":512,\"caption\":\"Hill Sales Corp\"},\"image\":{\"@id\":\"https:\/\/blog.hilltech.com\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.linkedin.com\/company\/hill-technical-sales-corp\",\"https:\/\/www.youtube.com\/@HillTechnicalSales\",\"https:\/\/www.instagram.com\/hill_tech_sales\/\"]},{\"@type\":\"Person\",\"@id\":\"\",\"url\":\"https:\/\/blog.hilltech.com\/?author=1\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Class II LED Power Supplies with 277 VAC input -","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/blog.hilltech.com\/?p=96","og_locale":"en_US","og_type":"article","og_title":"Class II LED Power Supplies with 277 VAC input -","og_description":"in many existing buildings that have dedicated electrical panels for lighting these are rated at 277VAC. In these installations LED lighting is typically not replacing all of the existing lighting. This means in these in cases in order to use these LED drivers you need a new circuit to supply 120VACVAC and a Continue reading &rarr;","og_url":"https:\/\/blog.hilltech.com\/?p=96","og_site_name":"Hill Technical Sales Blog","article_published_time":"2010-01-08T19:03:43+00:00","article_modified_time":"2022-04-07T02:24:31+00:00","twitter_card":"summary_large_image","twitter_misc":{"Written by":"","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/blog.hilltech.com\/?p=96#article","isPartOf":{"@id":"https:\/\/blog.hilltech.com\/?p=96"},"author":{"name":"","@id":""},"headline":"Class II LED Power Supplies with 277 VAC input","datePublished":"2010-01-08T19:03:43+00:00","dateModified":"2022-04-07T02:24:31+00:00","mainEntityOfPage":{"@id":"https:\/\/blog.hilltech.com\/?p=96"},"wordCount":302,"commentCount":0,"publisher":{"@id":"https:\/\/blog.hilltech.com\/#organization"},"keywords":["LED lighting"],"articleSection":["News","Product Announcements"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/blog.hilltech.com\/?p=96#respond"]}]},{"@type":"WebPage","@id":"https:\/\/blog.hilltech.com\/?p=96","url":"https:\/\/blog.hilltech.com\/?p=96","name":"Class II LED Power Supplies with 277 VAC input -","isPartOf":{"@id":"https:\/\/blog.hilltech.com\/#website"},"datePublished":"2010-01-08T19:03:43+00:00","dateModified":"2022-04-07T02:24:31+00:00","breadcrumb":{"@id":"https:\/\/blog.hilltech.com\/?p=96#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/blog.hilltech.com\/?p=96"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/blog.hilltech.com\/?p=96#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/blog.hilltech.com\/"},{"@type":"ListItem","position":2,"name":"Class II LED Power Supplies with 277 VAC input"}]},{"@type":"WebSite","@id":"https:\/\/blog.hilltech.com\/#website","url":"https:\/\/blog.hilltech.com\/","name":"Hill Technical Sales Blog","description":"Your source for all your Power, Thermal Management and Imaging needs","publisher":{"@id":"https:\/\/blog.hilltech.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/blog.hilltech.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/blog.hilltech.com\/#organization","name":"Hill Sales Corp","alternateName":"Hill Technical Sales","url":"https:\/\/blog.hilltech.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/blog.hilltech.com\/#\/schema\/logo\/image\/","url":"https:\/\/blog.hilltech.com\/wp-content\/uploads\/2016\/10\/Site-Icon-Hill-Tech-2.jpg","contentUrl":"https:\/\/blog.hilltech.com\/wp-content\/uploads\/2016\/10\/Site-Icon-Hill-Tech-2.jpg","width":512,"height":512,"caption":"Hill Sales Corp"},"image":{"@id":"https:\/\/blog.hilltech.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.linkedin.com\/company\/hill-technical-sales-corp","https:\/\/www.youtube.com\/@HillTechnicalSales","https:\/\/www.instagram.com\/hill_tech_sales\/"]},{"@type":"Person","@id":"","url":"https:\/\/blog.hilltech.com\/?author=1"}]}},"_links":{"self":[{"href":"https:\/\/blog.hilltech.com\/index.php?rest_route=\/wp\/v2\/posts\/96","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.hilltech.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.hilltech.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.hilltech.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.hilltech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=96"}],"version-history":[{"count":3,"href":"https:\/\/blog.hilltech.com\/index.php?rest_route=\/wp\/v2\/posts\/96\/revisions"}],"predecessor-version":[{"id":99,"href":"https:\/\/blog.hilltech.com\/index.php?rest_route=\/wp\/v2\/posts\/96\/revisions\/99"}],"wp:attachment":[{"href":"https:\/\/blog.hilltech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=96"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.hilltech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=96"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.hilltech.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=96"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}