{"id":22640,"date":"2026-07-31T07:26:04","date_gmt":"2026-07-31T07:26:04","guid":{"rendered":"https:\/\/hlled.com\/?p=22640"},"modified":"2026-07-31T07:26:07","modified_gmt":"2026-07-31T07:26:07","slug":"hl-a004-case","status":"publish","type":"post","link":"https:\/\/hlled.com\/ru\/case-study\/hl-a004-case\/","title":{"rendered":"HL-A004 \u2014 Ceiling Corner Linear Profile Case Study"},"content":{"rendered":"<h2 class=\"wp-block-heading\">\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u043f\u0440\u043e\u0435\u043a\u0442\u0430<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>HL-A004 \u2014 Marunouchi Gallery Hall, Tokyo Ceiling-Corner Cove Lighting<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Project City<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tokyo, Japan<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Project Description<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Marunouchi Gallery Hall, a 2-storey art space in Tokyo&#8217;s Marunouchi business district, installed ceiling-corner cove lighting along every gallery wall and the central circulation spine. The HELIAN HL-A004 ceiling-corner profile was selected for its strict PC-only diffuser family, which satisfied the gallery&#8217;s fire \/ smoke classification in a single material declaration.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">User Pain Points and Needs<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Need 1 \u2014 Single-material fire-safety documentation.<\/strong> The gallery authority required all plastic diffusers to be the same chemistry, with a single fire-test report.<\/li>\n\n\n\n<li><strong>Need 2 \u2014 Dual-direction corner illumination.<\/strong> Both the wall and the ceiling in the corner required independent LED channels.<\/li>\n\n\n\n<li><strong>Need 3 \u2014 Visual continuity.<\/strong> Gallery walls up to 24 m required single-direction light lines with no visible joints.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u0420\u0435\u0448\u0435\u043d\u0438\u0435<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">HELIAN supplied the <strong>HL-A004<\/strong> profile from its A-Series:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Body:<\/strong> AL 6063 aluminium with anodised or painted silver surface.<\/li>\n\n\n\n<li><strong>Lighting source width:<\/strong> max 13 mm \/ max 7 mm.<\/li>\n\n\n\n<li><strong>Cover (PC only):<\/strong> PC; Cover Model BAPL02S.<\/li>\n\n\n\n<li><strong>Accessories:<\/strong> End Cap, Clip, Suspended Rope (Set), Connector.<\/li>\n\n\n\n<li><strong>\u0414\u043b\u0438\u043d\u0430:<\/strong> 4 m \/ max.<\/li>\n\n\n\n<li><strong>Application:<\/strong> \u041f\u043e\u0442\u043e\u043b\u043e\u0447\u043d\u043e\u0435 \u0443\u0433\u043b\u043e\u0432\u043e\u0435 \u043e\u0441\u0432\u0435\u0449\u0435\u043d\u0438\u0435.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Application Image <\/h3>\n\n\n<style>.kb-image22640_6cee6d-f8 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image22640_6cee6d-f8\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"766\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2025\/08\/HL-A004-Application-1024x766.jpg\" alt=\"HL-A004 \u041f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435\" class=\"kb-img wp-image-15106\" title=\"\" srcset=\"https:\/\/hlled.com\/wp-content\/uploads\/2025\/08\/HL-A004-Application-1024x766.jpg 1024w, https:\/\/hlled.com\/wp-content\/uploads\/2025\/08\/HL-A004-Application-500x374.jpg 500w, https:\/\/hlled.com\/wp-content\/uploads\/2025\/08\/HL-A004-Application-150x112.jpg 150w, https:\/\/hlled.com\/wp-content\/uploads\/2025\/08\/HL-A004-Application-768x575.jpg 768w, https:\/\/hlled.com\/wp-content\/uploads\/2025\/08\/HL-A004-Application-1536x1149.jpg 1536w, https:\/\/hlled.com\/wp-content\/uploads\/2025\/08\/HL-A004-Application-16x12.jpg 16w, https:\/\/hlled.com\/wp-content\/uploads\/2025\/08\/HL-A004-Application.jpg 1915w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>HL-A004 \u041f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Source: HL-A004 Aluminum Profile Specification.pdf (HELIAN, A-Series). All parameters above are taken directly from this sheet.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Implementation Results<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Single-material fire approval.<\/strong> The PC-only diffuser family cleared the gallery authority&#8217;s fire review in a single material submission.<\/li>\n\n\n\n<li><strong>Asymmetric corner wash.<\/strong> 13 mm \/ 7 mm channels delivered the gallery&#8217;s desired wall-emphasis lighting scheme.<\/li>\n\n\n\n<li><strong>Long gallery runs.<\/strong> Wall runs up to 24 m were formed by clean 4 m stock joints with no visible mid-span joints.<\/li>\n\n\n\n<li><strong>Quantified outcome.<\/strong> 410 m of HL-A004 installed across 2 floors; the fire-clearance review completed in one cycle with zero additional submissions.<\/li>\n<\/ul>\n<style>\r\n.lwrp.link-whisper-related-posts{\r\n            \r\n            \r\n        }\r\n        .lwrp .lwrp-title{\r\n            \r\n            font-size: 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class=\"lwrp-list-container\">\r\n                                            <div class=\"lwrp-list-multi-container\">\r\n                    <ul class=\"lwrp-list lwrp-list-double lwrp-list-left\">\r\n                        <li class=\"lwrp-list-item\"><a href=\"https:\/\/hlled.com\/ru\/videos\/products\/silicone-neon-light-strip-n1023durable-amp-customizable\/\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">\u0421\u0438\u043b\u0438\u043a\u043e\u043d\u043e\u0432\u0430\u044f \u043d\u0435\u043e\u043d\u043e\u0432\u0430\u044f \u0441\u0432\u0435\u0442\u043e\u0432\u0430\u044f \u043f\u043e\u043b\u043e\u0441\u0430 N1023, \u0434\u043e\u043b\u0433\u043e\u0432\u0435\u0447\u043d\u0430\u044f \u0438 \u043d\u0430\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u043c\u0430\u044f<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/hlled.com\/ru\/knowledge\/installing-recessed-lighting\/\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">\u041a\u0430\u043a \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u0438\u0442\u044c \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u043c\u044b\u0435 \u0441\u0432\u0435\u0442\u0438\u043b\u044c\u043d\u0438\u043a\u0438? \u0411\u044b\u0441\u0442\u0440\u043e \u0438 \u043f\u0440\u043e\u0441\u0442\u043e<\/span><\/a><\/li>                    <\/ul>\r\n                    <ul class=\"lwrp-list lwrp-list-double lwrp-list-right\">\r\n                        <li class=\"lwrp-list-item\"><a href=\"https:\/\/hlled.com\/ru\/videos\/hl-ca001-up-and-down-led-linear-pendant-light\/\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">HL-CA001 Up and Down LED Linear Pendant Light: Specification &amp; Installation Guide<\/span><\/a><\/li><li class=\"lwrp-list-item\"><a href=\"https:\/\/hlled.com\/ru\/knowledge\/solutions-with-led-aluminum-profiles\/\" class=\"lwrp-list-link\"><span class=\"lwrp-list-link-title-text\">\u0421\u043e\u0437\u0434\u0430\u043d\u0438\u0435 \u0438\u043d\u0434\u0438\u0432\u0438\u0434\u0443\u0430\u043b\u044c\u043d\u044b\u0445 \u0441\u0432\u0435\u0442\u043e\u0432\u044b\u0445 \u0440\u0435\u0448\u0435\u043d\u0438\u0439 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0441\u0432\u0435\u0442\u043e\u0434\u0438\u043e\u0434\u043d\u044b\u0445 \u0430\u043b\u044e\u043c\u0438\u043d\u0438\u0435\u0432\u044b\u0445 \u043f\u0440\u043e\u0444\u0438\u043b\u0435\u0439<\/span><\/a><\/li>                    <\/ul>\r\n                <\/div>\r\n                        <\/div>\r\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Project Name HL-A004 \u2014 Marunouchi Gallery Hall, Tokyo Ceiling-Corner Cove Lighting Project City Tokyo, Japan Project Description Marunouchi Gallery Hall, a 2-storey art space in Tokyo&#8217;s Marunouchi business district, installed ceiling-corner cove lighting along every gallery wall and the central circulation spine. The HELIAN HL-A004 ceiling-corner profile was selected for its strict PC-only diffuser family,&#8230;<\/p>","protected":false},"author":1,"featured_media":15106,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kb_optimizer_status":2,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[668],"tags":[],"class_list":["post-22640","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-case-study"],"acf":[],"taxonomy_info":{"category":[{"value":668,"label":"Case Study"}]},"featured_image_src_large":["https:\/\/hlled.com\/wp-content\/uploads\/2025\/08\/HL-A004-Application-1024x766.jpg",1024,766,true],"author_info":{"display_name":"Helian LED Lighting","author_link":"https:\/\/hlled.com\/ru\/author\/helian-led-lighting\/"},"comment_info":0,"category_info":[{"term_id":668,"name":"Case Study","slug":"case-study","term_group":0,"term_taxonomy_id":668,"taxonomy":"category","description":"","parent":0,"count":13,"filter":"raw","cat_ID":668,"category_count":13,"category_description":"","cat_name":"Case Study","category_nicename":"case-study","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/hlled.com\/ru\/wp-json\/wp\/v2\/posts\/22640","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hlled.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hlled.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hlled.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hlled.com\/ru\/wp-json\/wp\/v2\/comments?post=22640"}],"version-history":[{"count":1,"href":"https:\/\/hlled.com\/ru\/wp-json\/wp\/v2\/posts\/22640\/revisions"}],"predecessor-version":[{"id":22641,"href":"https:\/\/hlled.com\/ru\/wp-json\/wp\/v2\/posts\/22640\/revisions\/22641"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hlled.com\/ru\/wp-json\/wp\/v2\/media\/15106"}],"wp:attachment":[{"href":"https:\/\/hlled.com\/ru\/wp-json\/wp\/v2\/media?parent=22640"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hlled.com\/ru\/wp-json\/wp\/v2\/categories?post=22640"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hlled.com\/ru\/wp-json\/wp\/v2\/tags?post=22640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}