{"id":13985,"date":"2023-09-10T16:54:18","date_gmt":"2023-09-10T16:54:18","guid":{"rendered":"https:\/\/staging.rayzeek.com\/?p=13985"},"modified":"2023-12-26T08:42:39","modified_gmt":"2023-12-26T08:42:39","slug":"what-is-light-loss-factor-llf","status":"publish","type":"post","link":"https:\/\/staging.rayzeek.com\/cs\/glossary\/what-is-light-loss-factor-llf\/","title":{"rendered":"What is Light Loss Factor (LLF)"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"h-what-is-light-loss-factor-llf\">What is Light Loss Factor (LLF)<\/h2>\n\n\n<p class=\"wp-block-paragraph\">Light Loss Factor (LLF) is a term used to quantify the reduction in light output that occurs over time in a lighting system. It is an essential factor considered in lighting calculations to ensure that the desired level of illuminance is maintained throughout the lifespan of the system.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">LLF takes into account various factors that contribute to the decrease in light output, including lamp depreciation, changes in luminaire performance, and the deterioration of room surfaces. By considering these factors, designers and engineers can accurately determine the number of lamps or luminaires required to achieve the desired level of illuminance in a given space.<\/p>\n<div class=\"insert_portfolio_outer_wrapper\"><h3>Inspirujte se portfoliem sn\u00edma\u010d\u016f pohybu Rayzeek.<\/h3><p>Nena\u0161li jste, co hled\u00e1te? Nem\u011bjte obavy. K vy\u0159e\u0161en\u00ed va\u0161ich po\u017eadavk\u016f existuj\u00ed v\u017edy alternativn\u00ed cesty. Mo\u017en\u00e1 v\u00e1m pom\u016f\u017ee n\u011bkter\u00e9 z na\u0161ich portfoli\u00ed.<\/p><div class = \"insert_portfolio_buttons\"><div class = \"insert_portfolio_button_wrapper\"><div><a href = \"https:\/\/www.rayzeek.com\/product-category\/motion-sensors\"><p>PIR sn\u00edma\u010de pohybu<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/motion-sensor-switches\"><p>Sp\u00edna\u010de s pohybov\u00fdm senzorem<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/occupancy-vacancy-sensors\"><p>\u010cidla p\u0159\u00edtomnosti<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/products\/rz050\"><p>Sn\u00edma\u010d pohybu pro klimatizaci<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/product-category\/motion-sensor-light-strip\"><p>Sv\u011bteln\u00e9 p\u00e1sky s pohybov\u00fdm \u010didlem<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/product-category\/dc-sensor-dimmer\"><p>N\u00edzkonap\u011b\u0165ov\u00e9 stejnosm\u011brn\u00e9 sn\u00edma\u010de pohybu \/ stm\u00edva\u010de<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/product-category\/wireless-motion-sensors\"><p>Sady bezdr\u00e1tov\u00fdch sn\u00edma\u010d\u016f pohybu<\/p><\/a><\/div><\/div><\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">The purpose of LLF is to account for the decrease in light output and ensure that the lighting system continues to provide adequate illumination throughout its life. It is crucial in lighting design as it allows for the calculation of the appropriate number of lamps or luminaires needed to compensate for the expected light loss over time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">LLF can be categorized as either initial or maintained. The initial LLF accounts for the reduction in light output immediately after installation, while the maintained LLF considers the decrease in light output over the life of the lighting system.<\/p>\n<div class=\"insert_inquiry_outer_wrapper\"><h3>Hled\u00e1te \u00fasporn\u00e1 \u0159e\u0161en\u00ed aktivovan\u00e1 pohybem?<\/h3><p>Kontaktujte n\u00e1s pro kompletn\u00ed PIR sn\u00edma\u010de pohybu, \u00fasporn\u00e9 produkty aktivovan\u00e9 pohybem, sp\u00edna\u010de s pohybov\u00fdm senzorem a komer\u010dn\u00ed \u0159e\u0161en\u00ed pro detekci p\u0159\u00edtomnosti \u010di nep\u0159\u00edtomnosti osob.<\/p><div class = \"insert_inquiry_buttons\"><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_email\"><div><a href = \"mailto:info@rayzeek.com\"><p>Odeslat e-mail<\/p><\/a><\/div><\/div><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_email_contact\"><div><a href=\"https:\/\/www.rayzeek.com\/contact\"><p>Kontaktn\u00ed formul\u00e1\u0159<\/p><\/a><\/div><\/div><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_chat chat_jump\"><div><a href=\"#\"><p>Online chat<\/p><\/a><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Doesn\\&#8217;t find what you want? Don\\&#8217;t worry. There are always alternate ways to solve your problems. Maybe one of our portfolios can help.PIR Motion Sensors&lt;a href=&quot;https:\/\/www.rayzeek.com<\/p>","protected":false},"author":4,"featured_media":12868,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"article_term":"","article_term_alternate":"","article_term_def":"","article_hook":"","auto_links":"[{\"keyword\": \"desired level of illuminance\", \"idxall\": 1, \"keywordtitlesimi\": 0.8392319679260254, \"keywordslugsimi\": 0.8392319679260254, \"paratitlesimi\": 0.6505306363105774, \"paraslugsimi\": 0.6505306363105774, \"slug\": \"what-is-level-of-illumination\", \"title\": \"What is Level of Illumination\", \"id\": 13762}, {\"keyword\": \"desired level of illuminance\", \"idxall\": 0, \"keywordtitlesimi\": 0.8392319679260254, \"keywordslugsimi\": 0.8392319679260254, \"paratitlesimi\": 0.6093376874923706, \"paraslugsimi\": 0.6093376874923706, \"slug\": \"what-is-level-of-illumination\", \"title\": \"What is Level of Illumination\", \"id\": 13762}, {\"keyword\": \"lamp depreciation\", \"idxall\": 0, \"keywordtitlesimi\": 0.8095577955245972, \"keywordslugsimi\": 0.8343991041183472, \"paratitlesimi\": 0.7710492610931396, \"paraslugsimi\": 0.7632697820663452, \"slug\": \"what-is-lamp-lumen-depreciation-lld\", \"title\": \"What is Lamp Lumen Depreciation (LLD)\", \"id\": 14228}, {\"keyword\": \"lighting design\", \"idxall\": 0, \"keywordtitlesimi\": 0.7430335283279419, \"keywordslugsimi\": 0.816278338432312, \"paratitlesimi\": 0.7041704654693604, \"paraslugsimi\": 0.6728711128234863, \"slug\": \"what-is-lighting-design-lumens\", \"title\": \"What is Lighting Design Lumens (LDL)\", \"id\": 13292}, {\"keyword\": \"lighting system\", \"idxall\": 0, \"keywordtitlesimi\": 0.7915798455476761, \"keywordslugsimi\": 0.7801460891962052, \"paratitlesimi\": 0.5814690202474594, \"paraslugsimi\": 0.5830065429210664, \"slug\": \"indoor-motion-sensor-light-guide\", \"title\": \"A Guide to Indoor Motion Sensor Lights\", \"id\": 9224}, {\"keyword\": \"changes in luminaire performance\", \"idxall\": 0, \"keywordtitlesimi\": 0.7859140038490295, \"keywordslugsimi\": 0.7859140038490295, \"paratitlesimi\": 0.6714780926704407, \"paraslugsimi\": 0.6714780926704407, \"slug\": \"what-is-luminaire-efficiency\", \"title\": \"What is Luminaire Efficiency\", \"id\": 13718}, {\"keyword\": \"lamp depreciation\", \"idxall\": 0, \"keywordtitlesimi\": 0.7857193946838379, \"keywordslugsimi\": 0.7857193946838379, \"paratitlesimi\": 0.7030512690544128, \"paraslugsimi\": 0.7030512690544128, \"slug\": \"what-is-lumen-depreciation\", \"title\": \"What is Lumen Depreciation\", \"id\": 14058}, {\"keyword\": \"lighting calculations\", \"idxall\": 0, \"keywordtitlesimi\": 0.7851309776306152, \"keywordslugsimi\": 0.7851309776306152, \"paratitlesimi\": 0.6093376874923706, \"paraslugsimi\": 0.6093376874923706, \"slug\": \"what-is-level-of-illumination\", \"title\": \"What is Level of Illumination\", \"id\": 13762}, {\"keyword\": \"lighting calculations\", \"idxall\": 0, \"keywordtitlesimi\": 0.7697330713272095, \"keywordslugsimi\": 0.7697330713272095, \"paratitlesimi\": 0.6791068911552429, \"paraslugsimi\": 0.6791068911552429, \"slug\": \"what-is-quantity-of-light\", \"title\": \"What is Quantity of Light\", \"id\": 13530}]","article_topic":"","article_fact_check":"","mt_social_share":"","mt_content_meta":"","mt_glossary_display":"","glossary_heading":"","glossary":"Light Loss Factor (LLF)","glossary_alter":"","glossary_def":"","article_task":"","footnotes":""},"categories":[102],"tags":[99],"class_list":["post-13985","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-glossary"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is Light Loss Factor (LLF) - Rayzeek<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is Light Loss Factor (LLF) - Rayzeek\" \/>\n<meta property=\"og:description\" content=\"Doesn&#039;t find what you want? 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