{"id":5967,"date":"2017-02-24T08:00:41","date_gmt":"2017-02-24T14:00:41","guid":{"rendered":"https:\/\/www.ulprospector.com\/knowledge\/?p=5967"},"modified":"2017-03-03T13:56:43","modified_gmt":"2017-03-03T19:56:43","slug":"pe-heat-resistant-polymers-help-led-lighting-move-indoors","status":"publish","type":"post","link":"https:\/\/ulprospector.ul.com\/5967\/pe-heat-resistant-polymers-help-led-lighting-move-indoors\/","title":{"rendered":"Heat-resistant Polymers Help LED Lighting Move Indoors"},"content":{"rendered":"<figure id=\"attachment_5968\" class=\"thumbnail wp-caption alignright\" style=\"width: 300px\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-5968\" src=\"https:\/\/ulprospector.ul.com\/media\/2017\/02\/andy-2017-02_07_HARTING_trade_journalist_meeting600400-300x200.jpg\" alt=\"Andy Pye (back row, 6th from left) at the Harting facility in Espelkamp, accompanied by Harting executives and journalists from across Europe.\" width=\"300\" height=\"200\" srcset=\"https:\/\/ulprospector.ul.com\/wp-content\/uploads\/2017\/02\/andy-2017-02_07_HARTING_trade_journalist_meeting600400-300x200.jpg 300w, https:\/\/ulprospector.ul.com\/wp-content\/uploads\/2017\/02\/andy-2017-02_07_HARTING_trade_journalist_meeting600400.jpg 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption class=\"caption wp-caption-text\">Andy Pye (back row, 6th from left) at the Harting facility in Espelkamp, accompanied by Harting executives and journalists from across Europe.<\/figcaption><\/figure>\n<p><strong><em>Andy Pye visited Harting Technology Group in Germany to find out about the manufacture and construction of electronic connectors, including those used for LED lighting.<\/em><\/strong><\/p>\n<p>LED lighting is here and growing. And as the technology matures and becomes more widely deployed, so too do the design and manufacturing techniques employed in creating new, innovative LED lighting products. Consequently, the market for components associated with LED lighting is already becoming highly competitive.<\/p>\n<p>Owing to three main factors, the market share of LED lighting technologies has grown rapidly. According to global management consulting firm McKinsey &amp; Company<sup>1<\/sup>, in 2010, LEDs represented just 14 percent. By 2016, this has grown to 58 percent, and is predicted to rise to 78 percent by 2020. This massive growth has been driven by three main factors.<\/p>\n<h3><strong>Price reduction<\/strong><\/h3>\n<p>The first of these is the reduction in price of LED technologies. Not only this, but the installation cost has also fallen relative to the cost of energy used. Given that LEDs use as little as 20% of the energy consumed by other technologies and can be virtually maintenance-free for up to 50,000 hours of operation, this has significantly shifted comparisons of total cost of ownership greatly in favour of LEDs.<\/p>\n<h3><strong>Regulatory shifts<\/strong><\/h3>\n<p>The second factor is a shift in the regulatory environment. Many countries have introduced laws or other statutory mechanisms aimed at reducing CO<sub>2<\/sub> emissions. The greater energy efficiency of LED lighting versus other technologies is an easy option for those specifying lighting for streets, indoor areas or road signs. In addition, other regulations have been put in place to reduce the use of harmful chemicals in lighting units, to make them easier to recycle, or to extend the life expectancy of lighting units. A good example is the European regulations in 2015 that ban the future specification of Mercury Vapour street lights.<\/p>\n<h3><strong>New applications<\/strong><\/h3>\n<p>The final major factor in the growth of LED lighting is the expanding range of applications to which designers apply the technology. Increasingly, LEDs are being used to light road signs and motorway direction boards. But LEDs are also appearing as indoor lighting, presenting a new range of design challenges.<\/p>\n<p>Many indoor applications, both domestic and industrial, require a level of ingress protection. This may be to protect the lighting unit from ink mist, water vapour, dust or other substances. Due to their low levels of waste heat and small size, LEDs lend themselves well to these applications.<\/p>\n<p>While outdoor lighting applications are often about efficiency and creating as much light as possible from as little energy as possible, indoor applications often have an additional \u2018quality\u2019 element in their specification. This is particularly important in signage and advertising. Because of their small size, LEDs are particularly suitable for innovative distributed designs of back-lighting.<\/p>\n<p>By positioning LEDs around the inside edges of the frame, designers can achieve a very even spread of light across the sign producing a brilliant image without \u2018hot spots\u2019.<\/p>\n<h3><strong>Printed circuit board innovations<\/strong><\/h3>\n<p>To avoid shadows and dull spots, components such as printed circuit board (PCB) terminal block connectors and discrete wire cables must be \u2018light neutral\u2019, preferably white in colour, and with very small profiles above the PCB to eliminate shadows. PCBs are usually white coated to maximise reflection, but it is remarkably easy for components such as connectors to cause a dull spot by discolouring during reflow soldering (which heats the components as well as the PCB and contact points).<\/p>\n<p>In the past, to avoid the problem of shadowing and discoloured dull-spots, most LED lighting PCBs were hand soldered for wire-to-board connectivity. However, this creates other disadvantages, such as the high-cost of manual work and soldering failures.<\/p>\n<figure id=\"attachment_5970\" class=\"thumbnail wp-caption alignleft\" style=\"width: 300px\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5970 size-medium\" src=\"https:\/\/ulprospector.ul.com\/media\/2017\/02\/andy-Harting-white-har-flexicon-for-LEDs-featured-300x200.jpg\" alt=\"Harting white Har-Flexicon connector for LEDs\" width=\"300\" height=\"200\" srcset=\"https:\/\/ulprospector.ul.com\/wp-content\/uploads\/2017\/02\/andy-Harting-white-har-flexicon-for-LEDs-featured-300x200.jpg 300w, https:\/\/ulprospector.ul.com\/wp-content\/uploads\/2017\/02\/andy-Harting-white-har-flexicon-for-LEDs-featured.jpg 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption class=\"caption wp-caption-text\">Harting white Har-Flexicon connector for LEDs<\/figcaption><\/figure>\n<p>The result is the development of surface mount technology (SMT) PCB terminal block connectors such as the <strong>Harting Har-Flexicon<\/strong>, designed specifically to deliver power to LED lighting units.<\/p>\n<p>These connectors are available in a white, high temperature liquid crystal polymer (LCP) that must be compliant with the reflow processing requirements of the thermally conductive metal PCB substrates. They must also satisfy these requirements, because of the LCP material\u2019s high resistance to UV damage, and the high lighting quality conditions of minimised shadowing, by remaining colour-stable after SMT processing, and during the light\u2019s operational life.<\/p>\n<p>Applying Har-Flexicon with surface mount reflow soldering processes greatly simplifies LED Module PCB assembly. Connecting the conductors in lighting fixtures was formerly often done using hand soldering. This is often unreliable and prone to error when using printed circuit boards with a metal core, due to the high degree of heat dissipation. The design of the Har-Flexicon connector SMT PCB hold-downs ensures rugged solder-pad retention and supports reliable handling.<\/p>\n<p>LED lighting lifetime is further extended through pluggable discrete wire cable connectors that feature highly reliable push-in spring-cage discrete wire termination and have a strong but flexible locking-latch design which is damage resistant, ensuring dependable mating and field maintenance.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Andy Pye visited Harting Technology Group in Germany to find out about the manufacture and construction of electronic connectors, including those used for LED lighting. LED lighting is here and growing. And as the technology matures and becomes more widely &hellip; <a href=\"https:\/\/ulprospector.ul.com\/5967\/pe-heat-resistant-polymers-help-led-lighting-move-indoors\/\">Continued<\/a><\/p>\n","protected":false},"author":22,"featured_media":5971,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"episode_type":"","audio_file":"","podmotor_file_id":"","podmotor_episode_id":"","cover_image":"","cover_image_id":"","duration":"","filesize":"","filesize_raw":"","date_recorded":"","explicit":"","block":"","itunes_episode_number":"","itunes_title":"","itunes_season_number":"","itunes_episode_type":"","footnotes":""},"categories":[21],"tags":[],"ppma_author":[1238],"class_list":{"0":"post-5967","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-plastics-2","8":"entry"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Add Some LED to Your Indoor Lighting<\/title>\n<meta name=\"description\" content=\"The market for LED lighting components is becoming highly competitive. Find out some of the reasons why, and some recent innovations in the field.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ulprospector.ul.com\/5967\/pe-heat-resistant-polymers-help-led-lighting-move-indoors\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Add Some LED to Your Indoor Lighting\" \/>\n<meta property=\"og:description\" content=\"The market for LED lighting components is becoming highly competitive. Find out some of the reasons why, and some recent innovations in the field.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ulprospector.ul.com\/5967\/pe-heat-resistant-polymers-help-led-lighting-move-indoors\/\" \/>\n<meta property=\"og:site_name\" content=\"Prospector Knowledge Center\" \/>\n<meta property=\"article:published_time\" content=\"2017-02-24T14:00:41+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2017-03-03T19:56:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ulprospector.ul.com\/wp-content\/uploads\/2017\/02\/andy-Harting-white-har-flexicon-for-LEDs-OG.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Andy Pye\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/ulprospector.ul.com\/media\/2017\/02\/andy-Harting-white-har-flexicon-for-LEDs-150x150.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Andy Pye\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/5967\\\/pe-heat-resistant-polymers-help-led-lighting-move-indoors\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/5967\\\/pe-heat-resistant-polymers-help-led-lighting-move-indoors\\\/\"},\"author\":{\"name\":\"Andy Pye\",\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/#\\\/schema\\\/person\\\/441082c0781d296fc60a593727eae674\"},\"headline\":\"Heat-resistant Polymers Help LED Lighting Move Indoors\",\"datePublished\":\"2017-02-24T14:00:41+00:00\",\"dateModified\":\"2017-03-03T19:56:43+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/5967\\\/pe-heat-resistant-polymers-help-led-lighting-move-indoors\\\/\"},\"wordCount\":855,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/5967\\\/pe-heat-resistant-polymers-help-led-lighting-move-indoors\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/ulprospector.ul.com\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/andy-Harting-white-har-flexicon-for-LEDs-featured-1.jpg\",\"articleSection\":[\"Plastics\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/ulprospector.ul.com\\\/5967\\\/pe-heat-resistant-polymers-help-led-lighting-move-indoors\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/5967\\\/pe-heat-resistant-polymers-help-led-lighting-move-indoors\\\/\",\"url\":\"https:\\\/\\\/ulprospector.ul.com\\\/5967\\\/pe-heat-resistant-polymers-help-led-lighting-move-indoors\\\/\",\"name\":\"Add Some LED to Your Indoor Lighting\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/5967\\\/pe-heat-resistant-polymers-help-led-lighting-move-indoors\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/5967\\\/pe-heat-resistant-polymers-help-led-lighting-move-indoors\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/ulprospector.ul.com\\\/wp-content\\\/uploads\\\/2017\\\/02\\\/andy-Harting-white-har-flexicon-for-LEDs-featured-1.jpg\",\"datePublished\":\"2017-02-24T14:00:41+00:00\",\"dateModified\":\"2017-03-03T19:56:43+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/ulprospector.ul.com\\\/#\\\/schema\\\/person\\\/441082c0781d296fc60a593727eae674\"},\"description\":\"The market for LED lighting components is becoming highly competitive. 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Working with end users, PR agencies and website designers, this business is growing rapidly and Andy is aactively building a team of expert writers to fufil the demand for feature articles, news items and white papers.\",\"sameAs\":[\"http:\\\/\\\/www.ulprospector.com\"],\"url\":\"https:\\\/\\\/ulprospector.ul.com\\\/author\\\/andy-pye\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Add Some LED to Your Indoor Lighting","description":"The market for LED lighting components is becoming highly competitive. 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Having originally qualified as a metallurgist at Cambridge University, Andy spent a period as a consultant, where he specialised in advanced composites, asbestos substitutes and the methodology of materials selection, subjects on which he has published several books and technical papers. Since the early 1980s, he has edited many of the leading manufacturing and engineering titles in the UK, firstly cutting his teeth as a technical journalist on Design Engineering. Known as \"The Materials Man\", he covered many of the early innovations in engineering plastics. He was promoted to editor in 1985 and subsequently moved on to edit Engineering magazine (1992), and Industrial Technology (1994). In 1999, with former colleagues, he launched Pro-Talk, which founded the first online publications for engineers in Europe - the then thriving business was sold to Centaur Publications in 2006. Since then, Andy has continued to publish online, including his own title New Materials International (www.newmaterials.com). He is also a regular contributor to many specialist engineering titles in the UK and Europe, including Controls, Drives &amp; Automation (CDA), Engineering &amp; Technology (E&amp;T), and Environmental Technology. As technology companies strive to manage their own websites, they are recognising the need to develop their writing and editing resources. Andy now works directly for companies in the manufacturing sector, delivering technical content through this medium for their current and prospective customers. Working with end users, PR agencies and website designers, this business is growing rapidly and Andy is aactively building a team of expert writers to fufil the demand for feature articles, news items and white papers.","sameAs":["http:\/\/www.ulprospector.com"],"url":"https:\/\/ulprospector.ul.com\/author\/andy-pye\/"}]}},"authors":[{"term_id":1238,"user_id":22,"is_guest":0,"slug":"andy-pye","display_name":"Andy Pye","avatar_url":"https:\/\/ulprospector.ul.com\/media\/2017\/10\/Andy-Pye_avatar_1508792576-96x96.jpg","0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/posts\/5967","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/users\/22"}],"replies":[{"embeddable":true,"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/comments?post=5967"}],"version-history":[{"count":0,"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/posts\/5967\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/media\/5971"}],"wp:attachment":[{"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/media?parent=5967"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/categories?post=5967"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/tags?post=5967"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/ulprospector.ul.com\/wp-json\/wp\/v2\/ppma_author?post=5967"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}