{"id":708,"date":"2012-11-21T18:13:04","date_gmt":"2012-11-21T18:13:04","guid":{"rendered":"\/blog\/?p=708"},"modified":"2016-11-08T04:03:33","modified_gmt":"2016-11-08T04:03:33","slug":"high-power-resistors-in-commercial-lighting-applications","status":"publish","type":"post","link":"https:\/\/riedon.com\/blog\/high-power-resistors-in-commercial-lighting-applications\/","title":{"rendered":"High Power Resistors in Commercial Lighting Applications"},"content":{"rendered":"<p>Lately, there has been a rise in popularity in use of Light Emitting Diodes (LED) due to the advantages they provide over existing technologies.\u00a0 <span style=\"color: #ff0000;\">LEDs<\/span> provide nearly identical output in a smaller package, consume less energy and have a much longer lifespan than other lighting technologies.\u00a0 In order to avoid over-powering these devices, it is important to control the temperature and current drawn by the <span style=\"color: #ff0000;\">LEDs<\/span> to maximize the benefits of the technology.<\/p>\n<p>To efficiently use<span style=\"color: #ff0000;\"> LEDs<\/span> in a reliable manner, it is necessary to limit the device current and the most cost-effective way to do this is to use a resistor.\u00a0 Selection of the correct resistor will involve knowledge of the recommended operating current of the LED and the application of Ohm\u2019s Law to find the correct resistance value.\u00a0 Once the resistance value is identified, the power dissipated by the resistor can be determined, again by Ohm\u2019s Law, and the correct power rating can be selected for the resistor.\u00a0 In most cases the resistor will only need to dissipate 1\/4W or 1\/2W and simple carbon film resistors may be satisfactory.\u00a0 For applications that require a higher power rating of between 1\/2W to 10W, Riedon recommends our UT series of wirewound power resistors.\u00a0 For even high power ratings, greater than 10W, Riedon recommends the UAL series, aluminum housed wirewound resistors with ratings to 50W and above, with properly heat-sinking.<\/p>\n<p>An additional factor to consider is the ambient operating temperature of the <span style=\"color: #ff0000;\">LED<\/span> and whether that temperature would lead to device failure.\u00a0 One method for keeping the temperature within operating range is the incorporation of heatsinks to carry heat away from the <span style=\"color: #ff0000;\">LED<\/span>.\u00a0 Riedon offers a variety of heatsink mountable high power resistors that would be appropriate to use in high power applications in which heat may compromise the reliability of the LED.\u00a0 For example, Riedon\u2019s PFS35 is a 35W device in a TO-263 package that is designed to be mounted on a heatsink.<\/p>\n<p>Riedon resistor products which are ideal for higher-power <span style=\"color: #ff0000;\">LED lighting<\/span> applications.\u00a0 Please contact Riedon directly for a discussion of your specific application. \u00a0<a href=\"http:\/\/riedon.com\/resistors\/\">click her to see the selection<\/a><\/p>\n<div id=\"attachment_715\" style=\"width: 160px\" class=\"wp-caption alignnone\"><a href=\"\/blog\/wp-content\/uploads\/2012\/11\/MSR-1-3-5-v21.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-715\" class=\"size-thumbnail wp-image-715\" title=\"current sense resistors\" src=\"\/blog\/wp-content\/uploads\/2012\/11\/MSR-1-3-5-v21-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><p id=\"caption-attachment-715\" class=\"wp-caption-text\">current sense resistorspower resistors<\/p><\/div>\n<div id=\"attachment_709\" style=\"width: 160px\" class=\"wp-caption alignleft\"><a href=\"\/blog\/wp-content\/uploads\/2012\/11\/PF2200.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-709\" class=\"size-thumbnail wp-image-709\" title=\"High Power resistors\" src=\"\/blog\/wp-content\/uploads\/2012\/11\/PF2200-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><p id=\"caption-attachment-709\" class=\"wp-caption-text\">Riedon Power resistors<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Lately, there has been a rise in popularity in use of Light Emitting Diodes (LED) due to the advantages they provide over existing technologies.\u00a0 LEDs provide nearly identical output in a smaller package, consume less energy and have a much longer lifespan than other lighting technologies.\u00a0 In order to avoid over-powering these devices, it is [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[3],"tags":[76,395],"class_list":["post-708","post","type-post","status-publish","format-standard","hentry","category-resistors","tag-power-resistors","tag-resistors"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>High Power Resistors in Commercial Lighting Applications - Riedon Company Blog<\/title>\n<meta name=\"description\" content=\"Lately, there has been a rise in popularity in use of Light Emitting Diodes (LED) due to the advantages they provide over existing technologies.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/riedon.com\/blog\/high-power-resistors-in-commercial-lighting-applications\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"High Power Resistors in Commercial Lighting Applications - Riedon Company Blog\" \/>\n<meta property=\"og:description\" content=\"Lately, there has been a rise in popularity in use of Light Emitting Diodes (LED) due to the 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