{"id":25220,"date":"2026-10-15T08:21:22","date_gmt":"2026-10-15T08:21:22","guid":{"rendered":"https:\/\/hlled.com\/quality-assurance\/"},"modified":"2026-10-28T08:05:53","modified_gmt":"2026-10-28T08:05:53","slug":"quality-assurance","status":"publish","type":"page","link":"https:\/\/hlled.com\/de\/quality-assurance\/","title":{"rendered":"Quality assurance"},"content":{"rendered":"<div id=\"qaPage\">\n<style>\n#qaPage{--qa-ink:#1b2430;--qa-ink-2:#4a5563;--qa-ink-3:#77828f;--qa-line:#e3e8ee;--qa-bg:#f5f7fa;--qa-blue:#2b6cb0;--qa-red:#ff485f;font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,\"Helvetica Neue\",Arial,sans-serif;color:var(--qa-ink);line-height:1.65;font-size:16px}\n#qaPage *{box-sizing:border-box}\n#qaPage .qa-wrap{max-width:1120px;margin:0 auto;padding:0 24px}\n#qaPage h1,#qaPage h2,#qaPage h3{margin:0;line-height:1.25;letter-spacing:-.01em}\n#qaPage p{margin:0}\n#qaPage a{color:var(--qa-blue);text-decoration:none}\n\/* hero *\/\n#qaPage .qa-hero{background:#222;color:#fff;padding:76px 0 66px}\n#qaPage .qa-eyebrow{display:inline-block;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#9aa6b2;margin-bottom:16px}\n#qaPage .qa-hero h1{font-size:40px;font-weight:700;max-width:820px}\n#qaPage .qa-hero p{margin-top:18px;max-width:720px;color:#c3ccd6;font-size:17px}\n#qaPage .qa-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#3a3a3a;margin-top:44px;border:1px solid #3a3a3a}\n#qaPage .qa-stat{background:#262626;padding:20px 18px}\n#qaPage .qa-stat b{display:block;font-size:22px;color:#fff;font-weight:700}\n#qaPage .qa-stat span{display:block;font-size:12.5px;color:#9aa6b2;margin-top:5px;letter-spacing:.02em}\n\/* section *\/\n#qaPage .qa-sec{padding:64px 0;border-bottom:1px solid var(--qa-line)}\n#qaPage .qa-sec.alt{background:var(--qa-bg)}\n#qaPage .qa-kicker{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--qa-ink-3);margin-bottom:12px}\n#qaPage .qa-sec h2{font-size:29px;font-weight:700;margin-bottom:14px}\n#qaPage .qa-lead{font-size:17px;color:var(--qa-ink-2);max-width:780px}\n\/* gate cards *\/\n#qaPage .qa-gates{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:34px}\n#qaPage .qa-gate{background:#fff;border:1px solid var(--qa-line);border-radius:12px;padding:24px 24px 20px;display:flex;flex-direction:column}\n#qaPage .qa-gate-h{display:flex;align-items:baseline;gap:12px;margin-bottom:6px}\n#qaPage .qa-gate-n{font-family:ui-monospace,Menlo,monospace;font-size:12px;color:var(--qa-blue);letter-spacing:.1em}\n#qaPage .qa-gate h3{font-size:19px;font-weight:700}\n#qaPage .qa-gate-sub{font-size:13.5px;color:var(--qa-ink-3);margin-bottom:16px}\n#qaPage .qa-rows{display:grid;gap:9px;margin-bottom:16px}\n#qaPage .qa-row{display:grid;grid-template-columns:74px 1fr;gap:10px;font-size:14.5px}\n#qaPage .qa-row dt{color:var(--qa-ink-3);font-size:12.5px;letter-spacing:.04em;text-transform:uppercase;padding-top:2px}\n#qaPage .qa-row dd{margin:0;color:var(--qa-ink-2)}\n#qaPage .qa-shot{margin-top:auto}\n#qaPage .qa-shot a{display:block;cursor:zoom-in}\n#qaPage .qa-shot img{display:block;width:100%;height:auto;border-radius:8px}\n#qaPage .qa-shot-cap{font-size:12.5px;color:var(--qa-ink-3);margin-top:8px;line-height:1.5}\n#qaPage .qa-reclink{display:inline-flex;align-items:center;gap:6px;margin-top:9px;font-size:13px;color:var(--qa-blue);cursor:zoom-in;border-bottom:1px dashed #c7d4e2;padding-bottom:1px}\n#qaPage .qa-reclink:after{content:\"\\2197\";font-size:12px}\n\/* figure *\/\n#qaPage figure{margin:0}\n#qaPage .qa-fig{background:#fff;border:1px solid var(--qa-line);border-radius:12px;padding:12px;cursor:zoom-in;display:block}\n#qaPage .qa-fig img{display:block;width:100%;height:auto;border-radius:6px}\n#qaPage figcaption{font-size:12.5px;color:var(--qa-ink-3);margin-top:9px;line-height:1.5}\n\/* data blocks *\/\n#qaPage .qa-grid2{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:30px;align-items:start}\n#qaPage .qa-panel{background:#fff;border:1px solid var(--qa-line);border-radius:12px;padding:24px}\n#qaPage .qa-panel h3{font-size:17px;font-weight:700;margin-bottom:14px}\n#qaPage table.qa-t{width:100%;border-collapse:collapse;font-size:14.5px}\n#qaPage table.qa-t th{text-align:left;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--qa-ink-3);font-weight:600;padding:8px 10px;border-bottom:1px solid var(--qa-line)}\n#qaPage table.qa-t td{padding:10px;border-bottom:1px solid #f0f3f7;color:var(--qa-ink-2);vertical-align:top}\n#qaPage table.qa-t tr:last-child td{border-bottom:0}\n#qaPage table.qa-t td b{color:var(--qa-ink);font-weight:600}\n#qaPage .qa-aql{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:6px}\n#qaPage .qa-aql div{background:var(--qa-bg);border-radius:8px;padding:14px;text-align:center}\n#qaPage .qa-aql b{display:block;font-size:24px;color:var(--qa-ink);font-weight:700}\n#qaPage .qa-aql span{font-size:12px;color:var(--qa-ink-3);letter-spacing:.06em;text-transform:uppercase}\n#qaPage .qa-note{font-size:13px;color:var(--qa-ink-3);margin-top:14px;padding-left:12px;border-left:3px solid var(--qa-red)}\n\/* test grid *\/\n#qaPage .qa-tests{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}\n#qaPage .qa-test{background:#fff;border:1px solid var(--qa-line);border-radius:10px;padding:18px}\n#qaPage .qa-test b{display:block;font-size:14.5px;margin-bottom:6px}\n#qaPage .qa-test span{font-size:13px;color:var(--qa-ink-2);display:block;line-height:1.55}\n#qaPage .qa-test em{font-style:normal;font-family:ui-monospace,Menlo,monospace;font-size:12.5px;color:var(--qa-blue)}\n\/* steps *\/\n#qaPage .qa-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}\n#qaPage .qa-step{background:#fff;border:1px solid var(--qa-line);border-radius:12px;padding:20px}\n#qaPage .qa-step i{font-style:normal;font-family:ui-monospace,Menlo,monospace;font-size:11.5px;letter-spacing:.12em;color:var(--qa-red)}\n#qaPage .qa-step b{display:block;font-size:15.5px;margin:6px 0 8px}\n#qaPage .qa-step p{font-size:13.5px;color:var(--qa-ink-2)}\n\/* records list *\/\n#qaPage .qa-recs{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:26px}\n#qaPage .qa-rec{background:#fff;border:1px solid var(--qa-line);border-radius:10px;padding:16px;text-align:center}\n#qaPage .qa-rec b{display:block;font-size:13.5px;margin-bottom:4px}\n#qaPage .qa-rec span{font-size:12px;color:var(--qa-ink-3)}\n\/* warranty *\/\n#qaPage .qa-warr{max-width:760px;margin-top:26px}\n\/* cta *\/\n#qaPage .qa-cta{background:#222;color:#fff;padding:56px 0}\n#qaPage .qa-cta h2{font-size:26px;margin-bottom:10px}\n#qaPage .qa-cta p{color:#c3ccd6;max-width:640px;margin-bottom:22px}\n#qaPage .qa-btn{display:inline-block;background:var(--qa-red);color:#fff;font-weight:600;padding:13px 26px;border-radius:8px;font-size:15px}\n\/* lightbox *\/\n#qaPage .qa-lb{position:fixed;inset:0;background:rgba(12,16,22,.94);display:none;align-items:center;justify-content:center;z-index:99999;padding:24px}\n#qaPage .qa-lb.on{display:flex}\n#qaPage .qa-lb img{max-width:96vw;max-height:92vh;background:#fff;border-radius:4px}\n#qaPage .qa-lb button{position:absolute;top:18px;right:22px;background:transparent;border:1px solid #5a6572;color:#fff;border-radius:6px;padding:7px 14px;font-size:13px;cursor:pointer}\n@media(max-width:860px){\n#qaPage .qa-hero h1{font-size:29px}\n#qaPage .qa-stats{grid-template-columns:1fr 1fr}\n#qaPage .qa-gates,#qaPage .qa-grid2,#qaPage .qa-tests,#qaPage .qa-steps{grid-template-columns:1fr}\n#qaPage .qa-recs{grid-template-columns:1fr 1fr}\n#qaPage .qa-sec{padding:44px 0}\n#qaPage .qa-sec h2{font-size:23px}\n}\n<\/style>\n\n<header class=\"qa-hero\">\n  <div class=\"qa-wrap\">\n    <span class=\"qa-eyebrow\">Quality assurance<\/span>\n    <h1>What we check, and what we can prove<\/h1>\n    <p>Four inspection gates, GB2828 sampling and a signed record for every lot. The controlled documents below are the ones our inspectors work from \u2014 you can open any of them and read the actual limits, not a summary of them.<\/p>\n    <div class=\"qa-stats\">\n      <div class=\"qa-stat\"><b>4 gates<\/b><span>Incoming \u00b7 first article \u00b7 patrol \u00b7 pre-shipment<\/span><\/div>\n      <div class=\"qa-stat\"><b>0.10 \/ 0.65 \/ 2.5<\/b><span>AQL \u2014 critical \/ major \/ minor<\/span><\/div>\n      <div class=\"qa-stat\"><b>GB2828 II<\/b><span>Lot sampling plan<\/span><\/div>\n      <div class=\"qa-stat\"><b>100%<\/b><span>Surface check before packing<\/span><\/div>\n    <\/div>\n  <\/div>\n<\/header>\n\n<section class=\"qa-sec\">\n  <div class=\"qa-wrap\">\n    <div class=\"qa-kicker\">01 \u2014 Process control<\/div>\n    <h2>A lot cannot skip a gate<\/h2>\n    <p class=\"qa-lead\">Goods receipt, incoming inspection, warehouse booking, issue to production, first article, run, in-process patrol, final inspection and pre-shipment. A failing lot has two exits only: written concession or rework. Nothing moves on verbal approval.<\/p>\n    <div class=\"qa-grid2\" style=\"grid-template-columns:1.55fr 1fr\">\n      <figure>\n        <a class=\"qa-fig\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/flow-control.webp\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/flow-control.webp\" target=\"_blank\">\n          <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/flow-control.webp\" alt=\"Quality control flow chart showing incoming inspection, first article, in-process patrol and final inspection with hold points\" width=\"1400\" height=\"928\" loading=\"lazy\" title=\"\">\n        <\/a>\n        <figcaption>Process control chart \u2014 \u54c1\u8d28\u63a7\u5236\u6d41\u7a0b\u56fe. Each box states the input, the responsible department, the work point and the output record.<\/figcaption>\n      <\/figure>\n      <div class=\"qa-panel\">\n        <h3>Where the stops are<\/h3>\n        <table class=\"qa-t\">\n          <tr><td><b>IQC<\/b><br>Incoming<\/td><td>Lot held in quarantine bay until disposition \u2014 no booking to stock before release<\/td><\/tr>\n          <tr><td><b>First article<\/b><br>Setup<\/td><td>Run stops until first piece matches the approved sample and drawing<\/td><\/tr>\n          <tr><td><b>Patrol<\/b><br>In-process<\/td><td>Non-conformance slip issued at the station; production decides rework or concession<\/td><\/tr>\n          <tr><td><b>Pre-shipment<\/b><br>Final<\/td><td>Cartons released only against a signed inspection report<\/td><\/tr>\n        <\/table>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/section>\n\n<section class=\"qa-sec alt\">\n  <div class=\"qa-wrap\">\n    <div class=\"qa-kicker\">02 \u2014 The four gates<\/div>\n    <h2>What each gate checks, and what it leaves behind<\/h2>\n    <p class=\"qa-lead\">Every gate answers the same four questions: what is checked, against which limit, by whom, and what record survives the shipment.<\/p>\n    <p class=\"qa-note\" style=\"margin-top:18px;max-width:820px\">The documents shown here are the controlled <b>templates<\/b> our inspectors fill in \u2014 not sample records. A completed record carries its own record number; ask your sales contact and production will issue the copy for your batch.<\/p>\n\n    <div class=\"qa-gates\">\n      <article class=\"qa-gate\">\n        <div class=\"qa-gate-h\"><span class=\"qa-gate-n\">GATE 01<\/span><h3>Incoming<\/h3><\/div>\n        <div class=\"qa-gate-sub\">IQC \u00b7 profiles, LEDs, substrate, kits<\/div>\n        <dl class=\"qa-rows\">\n          <div class=\"qa-row\"><dt>Checks<\/dt><dd>Section and wall thickness against drawing, alloy and surface colour, scratches and dents, LED electricals on the sphere, aluminium substrate, matching kits<\/dd><\/div>\n          <div class=\"qa-row\"><dt>Limit<\/dt><dd>Scratch \u22643 mm long, \u22640.25 mm wide, area &lt;3 mm\u00b2, one per face, lot defect rate \u22642%<\/dd><\/div>\n          <div class=\"qa-row\"><dt>Record<\/dt><dd>Incoming inspection report \u2014 supplier, lot, quantity checked, quantity defective, usable yes\/no<\/dd><\/div>\n        <\/dl>\n        <div class=\"qa-shot\">\n          <a data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-07-surface-colour-check-v3.jpg\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-07-surface-colour-check-v3.jpg\" target=\"_blank\">\n            <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-07-surface-colour-check-v3.jpg\" alt=\"Caliper check on an incoming bundle of aluminium profiles\" width=\"1280\" height=\"900\" loading=\"lazy\" title=\"\">\n          <\/a>\n          <div class=\"qa-shot-cap\">Incoming lot measured on arrival \u2014 section and wall thickness against the drawing.<\/div>\n          <a class=\"qa-reclink\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-iqc.webp\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-iqc.webp\" target=\"_blank\">Template: incoming inspection record<\/a>\n        <\/div>\n      <\/article>\n\n      <article class=\"qa-gate\">\n        <div class=\"qa-gate-h\"><span class=\"qa-gate-n\">GATE 02<\/span><h3>First article<\/h3><\/div>\n        <div class=\"qa-gate-sub\">Setup approval before the run<\/div>\n        <dl class=\"qa-rows\">\n          <div class=\"qa-row\"><dt>Checks<\/dt><dd>BOM and order consistency, colour and LOGO, semi-finished trial fit, function and reliability of the first piece<\/dd><\/div>\n          <div class=\"qa-row\"><dt>Limit<\/dt><dd>Against the customer-approved sample, the drawing and the order sheet<\/dd><\/div>\n          <div class=\"qa-row\"><dt>Record<\/dt><dd>First article record, signed before mass production is released<\/dd><\/div>\n        <\/dl>\n        <div class=\"qa-shot\">\n          <a data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-02-first-article-inspection-v3.jpg\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-02-first-article-inspection-v3.jpg\" target=\"_blank\">\n            <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-02-first-article-inspection-v3.jpg\" alt=\"First article check: measuring the setup piece and trial-fitting the diffuser\" width=\"1280\" height=\"900\" loading=\"lazy\" title=\"\">\n          <\/a>\n          <div class=\"qa-shot-cap\">First piece measured, then trial-fitted with its diffuser before the run is released.<\/div>\n          <a class=\"qa-reclink\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-first-article.webp\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-first-article.webp\" target=\"_blank\">Template: first article record<\/a>\n        <\/div>\n      <\/article>\n\n      <article class=\"qa-gate\">\n        <div class=\"qa-gate-h\"><span class=\"qa-gate-n\">GATE 03<\/span><h3>In-process patrol<\/h3><\/div>\n        <div class=\"qa-gate-sub\">IPQC \u00b7 during the run<\/div>\n        <dl class=\"qa-rows\">\n          <div class=\"qa-row\"><dt>Checks<\/dt><dd>Material confirmed at each station, appearance, function and reliability spot checks during production<\/dd><\/div>\n          <div class=\"qa-row\"><dt>Limit<\/dt><dd>SIP defect classes \u2014 critical, major, minor; appearance read at 30 cm under normal light<\/dd><\/div>\n          <div class=\"qa-row\"><dt>Record<\/dt><dd>Patrol log; a non-conformance slip is raised at the station when something drifts<\/dd><\/div>\n        <\/dl>\n        <div class=\"qa-shot\">\n          <a data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-03-in-process-inspection-v3.jpg\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-03-in-process-inspection-v3.jpg\" target=\"_blank\">\n            <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-03-in-process-inspection-v3.jpg\" alt=\"Stock checked before issue, and finished sections lit during the patrol check\" width=\"1280\" height=\"900\" loading=\"lazy\" title=\"\">\n          <\/a>\n          <div class=\"qa-shot-cap\">Stock checked before issue, and finished sections lit for the patrol check.<\/div>\n          <a class=\"qa-reclink\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-nonconforming.webp\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-nonconforming.webp\" target=\"_blank\">Template: non-conformance report<\/a>\n        <\/div>\n      <\/article>\n\n      <article class=\"qa-gate\">\n        <div class=\"qa-gate-h\"><span class=\"qa-gate-n\">GATE 04<\/span><h3>Pre-shipment<\/h3><\/div>\n        <div class=\"qa-gate-sub\">FQC \/ OQC \u00b7 before packing<\/div>\n        <dl class=\"qa-rows\">\n          <div class=\"qa-row\"><dt>Checks<\/dt><dd>Dimensions and length, appearance, packaging and protection, net and gross weight, marking and labels<\/dd><\/div>\n          <div class=\"qa-row\"><dt>Limit<\/dt><dd>Product inspection standard plus the AQL plan below<\/dd><\/div>\n          <div class=\"qa-row\"><dt>Record<\/dt><dd>Outgoing inspection report \u2014 one set for profiles, one for housings, one for finished luminaires<\/dd><\/div>\n        <\/dl>\n        <div class=\"qa-shot\">\n          <a data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-04-pre-shipment-inspection-v3.jpg\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-04-pre-shipment-inspection-v3.jpg\" target=\"_blank\">\n            <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-04-pre-shipment-inspection-v3.jpg\" alt=\"Profiles wiped down and packed into cartons before shipment\" width=\"1280\" height=\"900\" loading=\"lazy\" title=\"\">\n          <\/a>\n          <div class=\"qa-shot-cap\">Sections wiped down and packed \u2014 the last point before the report is signed.<\/div>\n          <a class=\"qa-reclink\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-oqc-profile.webp\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-oqc-profile.webp\" target=\"_blank\">Template: outgoing inspection report<\/a>\n        <\/div>\n      <\/article>\n    <\/div>\n  <\/div>\n<\/section>\n\n<section class=\"qa-sec\">\n  <div class=\"qa-wrap\">\n    <div class=\"qa-kicker\">03 \u2014 Acceptance criteria<\/div>\n    <h2>The numbers we accept or reject against<\/h2>\n    <p class=\"qa-lead\">This is the part buyers usually have to ask for. Sampling follows GB2828 general inspection level II; defect classes sit in the SIP, and the cosmetic limits sit in the incoming standard.<\/p>\n\n    <div class=\"qa-grid2\">\n      <div class=\"qa-panel\">\n        <h3>Sampling and defect classes<\/h3>\n        <div class=\"qa-aql\">\n          <div><b>0.10<\/b><span>Critical<\/span><\/div>\n          <div><b>0.65<\/b><span>Major<\/span><\/div>\n          <div><b>2.5<\/b><span>Minor<\/span><\/div>\n        <\/div>\n        <table class=\"qa-t\" style=\"margin-top:18px\">\n          <tr><th>Class<\/th><th>Meaning<\/th><th>Concession<\/th><\/tr>\n          <tr><td><b>CR<\/b><\/td><td>Safety or regulatory failure \u2014 shock, fire, non-compliant marking<\/td><td>Not allowed<\/td><\/tr>\n          <tr><td><b>MAJ<\/b><\/td><td>Function lost, or visible at 30 cm under normal light<\/td><td>Written approval only<\/td><\/tr>\n          <tr><td><b>MIN<\/b><\/td><td>Cosmetic, no effect on function or installation<\/td><td>Written approval only<\/td><\/tr>\n        <\/table>\n        <p class=\"qa-note\">Appearance is judged at 30 cm from the eye, 45\u00b0 to the viewing plane, under normal light \u2014 the same condition written into the SIP.<\/p>\n      <\/div>\n\n      <div class=\"qa-panel\">\n        <h3>Cosmetic acceptance \u2014 profiles<\/h3>\n        <table class=\"qa-t\">\n          <tr><th>Item<\/th><th>Limit<\/th><\/tr>\n          <tr><td>Scratch length<\/td><td><b>\u2264 3 mm<\/b><\/td><\/tr>\n          <tr><td>Scratch width<\/td><td><b>\u2264 0.25 mm<\/b><\/td><\/tr>\n          <tr><td>Scratch area<\/td><td><b>&lt; 3 mm\u00b2<\/b><\/td><\/tr>\n          <tr><td>Scratches per face<\/td><td><b>Max 1<\/b><\/td><\/tr>\n          <tr><td>Lot defect rate<\/td><td><b>\u2264 2%<\/b><\/td><\/tr>\n          <tr><td>Colour<\/td><td>Matches the standard swatch and the end caps \/ fittings in the same order<\/td><\/tr>\n          <tr><td>Abmessungen<\/td><td>Consistent with the drawing; section, wall thickness and length<\/td><\/tr>\n        <\/table>\n        <p class=\"qa-note\">Taken verbatim from the incoming inspection standard, section 1 \u2014 profiles.<\/p>\n      <\/div>\n      <figure style=\"margin-top:22px\">\n        <a class=\"qa-fig\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-08-dimension-check-v3.jpg\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-08-dimension-check-v3.jpg\" target=\"_blank\">\n          <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-08-dimension-check-v3.jpg\" alt=\"Dial caliper measuring a profile section on the inspection bench\" width=\"1280\" height=\"900\" loading=\"lazy\" title=\"\">\n        <\/a>\n        <figcaption>Every limit above is measured, not eyeballed \u2014 dial caliper on the inspection bench.<\/figcaption>\n      <\/figure>\n    <\/div>\n\n    <div class=\"qa-grid2\" style=\"margin-top:26px\">\n      <figure>\n        <a class=\"qa-fig\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/sip-aql-table-scaled.webp\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/sip-aql-table-scaled.webp\" target=\"_blank\">\n          <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/sip-aql-table-scaled.webp\" alt=\"Finished goods inspection instruction sheet showing GB2828 sampling and AQL levels\" width=\"1388\" height=\"2048\" loading=\"lazy\" title=\"\">\n        <\/a>\n        <figcaption>\u6210\u54c1\u68c0\u9a8c\u6307\u5bfc\u4e66 (SIP), rev 1.0 \u2014 sampling plan, AQL levels and the CR \/ MAJ \/ MIN tick columns.<\/figcaption>\n      <\/figure>\n      <figure>\n        <a class=\"qa-fig\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/incoming-standard.webp\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/incoming-standard.webp\" target=\"_blank\">\n          <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/incoming-standard.webp\" alt=\"Incoming inspection standard listing acceptance limits for profiles, LEDs and kits\" width=\"1400\" height=\"1979\" loading=\"lazy\" title=\"\">\n        <\/a>\n        <figcaption>\u6765\u6599\u68c0\u9a8c\u6807\u51c6 \u2014 the cosmetic and dimensional limits for profiles, LEDs, substrate and kits.<\/figcaption>\n      <\/figure>\n    <\/div>\n  <\/div>\n<\/section>\n\n<section class=\"qa-sec alt\">\n  <div class=\"qa-wrap\">\n    <div class=\"qa-kicker\">04 \u2014 Test bench<\/div>\n    <h2>What we run before it ships<\/h2>\n    <p class=\"qa-lead\">Electrical, optical, ageing, hipot and switching tests are written into the SIP with fixed parameters. Packaging is tested against a separate drop standard.<\/p>\n\n    <div class=\"qa-grid2\" style=\"margin-top:30px\">\n      <figure>\n        <a class=\"qa-fig\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-05-aging-test-v3.jpg\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-05-aging-test-v3.jpg\" target=\"_blank\">\n          <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-05-aging-test-v3.jpg\" alt=\"Ageing run on a bank of luminaires fed from a metered AC source\" width=\"1280\" height=\"900\" loading=\"lazy\" title=\"\">\n        <\/a>\n        <figcaption>Ageing run \u2014 a bank of luminaires on a metered AC source (221 V \/ 50 Hz on the panel).<\/figcaption>\n      <\/figure>\n      <figure>\n        <a class=\"qa-fig\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-06-integrating-sphere-test-v3.jpg\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-06-integrating-sphere-test-v3.jpg\" target=\"_blank\">\n          <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/qa-06-integrating-sphere-test-v3.jpg\" alt=\"Technician loading a linear luminaire into the integrating sphere\" width=\"1280\" height=\"900\" loading=\"lazy\" title=\"\">\n        <\/a>\n        <figcaption>Integrating sphere \u2014 flux, CCT, CRI and efficacy, two pieces per lot.<\/figcaption>\n      <\/figure>\n    <\/div>\n\n    <div class=\"qa-tests\">\n      <div class=\"qa-test\"><b>Hipot (withstand)<\/b><span><em>1500 V \/ 50 Hz \/ 5 mA \/ 3 s<\/em> \u2014 no breakdown, no alarm<\/span><\/div>\n      <div class=\"qa-test\"><b>Ageing run<\/b><span><em>Rated voltage \u00b120%, 2 h continuous, \u226520 switching cycles<\/em> \u2014 no colour shift, dark spot, dead LED or flicker<\/span><\/div>\n      <div class=\"qa-test\"><b>Switching life<\/b><span><em>5 s on \/ 45 s off, 25\u201335 \u00b0C, 500 cycles<\/em><\/span><\/div>\n      <div class=\"qa-test\"><b>Electrical<\/b><span><em>Current \u00b110%, power \u00b115%, power factor \u00b10.05<\/em> at rated voltage<\/span><\/div>\n      <div class=\"qa-test\"><b>Optical<\/b><span><em>Integrating sphere, 2 pcs per lot<\/em> \u2014 luminous flux, CCT, CRI, efficacy against the order sheet<\/span><\/div>\n      <div class=\"qa-test\"><b>Verpackung<\/b><span>Drop standard applied to the packed carton \u2014 edge, corner and face drops before the packing spec is released<\/span><\/div>\n    <\/div>\n\n    <div class=\"qa-grid2\" style=\"margin-top:28px\">\n      <figure>\n        <a class=\"qa-fig\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/aging-spec.webp\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/aging-spec.webp\" target=\"_blank\">\n          <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/aging-spec.webp\" alt=\"Ageing test specification for LED luminaires\" width=\"1400\" height=\"1979\" loading=\"lazy\" title=\"\">\n        <\/a>\n        <figcaption>\u5408\u8054 LED \u706f\u5177\u8001\u5316\u6d4b\u8bd5\u89c4\u8303 \u2014 ageing conditions and pass \/ fail points.<\/figcaption>\n      <\/figure>\n      <figure>\n        <a class=\"qa-fig\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/drop-test-standard.webp\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/drop-test-standard.webp\" target=\"_blank\">\n          <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/drop-test-standard.webp\" alt=\"Packaging drop test standard\" width=\"1400\" height=\"1806\" loading=\"lazy\" title=\"\">\n        <\/a>\n        <figcaption>\u5305\u88c5\u8dcc\u843d\u6d4b\u8bd5\u901a\u7528\u6807\u51c6 \u2014 drop heights, orientations and acceptance.<\/figcaption>\n      <\/figure>\n    <\/div>\n\n    <p class=\"qa-note\" style=\"margin-top:24px;max-width:820px\">In-house laboratories cover reliability (UV, lifetime, thermal cycling, drop, power cycling, transport simulation), environment (thermal shock, salt mist, IP68 rig), EMC and optics (IES). Test equipment includes surge and RoHS testers and an integrating sphere.<\/p>\n  <\/div>\n<\/section>\n\n<section class=\"qa-sec\">\n  <div class=\"qa-wrap\">\n    <div class=\"qa-kicker\">05 \u2014 When something fails<\/div>\n    <h2>Three documents, one route to closure<\/h2>\n    <p class=\"qa-lead\">A defect is not closed when it is reworked. It is closed when the cause is written down, the countermeasure is checked, and the slip is signed off under its record number.<\/p>\n\n    <div class=\"qa-steps\">\n      <div class=\"qa-step\">\n        <i>STEP 01<\/i><b>Non-conformance slip<\/b>\n        <p>Raised at the station where the deviation is found \u2014 patrol, first article or final. States the lot, the defect and the quantity.<\/p>\n      <\/div>\n      <div class=\"qa-step\">\n        <i>STEP 02<\/i><b>Disposition report<\/b>\n        <p>Rework, sort, concession or reject \u2014 decided with the production lead and, where a customer requirement is affected, with the customer.<\/p>\n      <\/div>\n      <div class=\"qa-step\">\n        <i>STEP 03<\/i><b>8D report<\/b>\n        <p>For repeated or field issues: containment, root cause, permanent corrective action and verification of effectiveness.<\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"qa-grid2\" style=\"grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px\">\n      <figure>\n        <a class=\"qa-fig\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-nonconforming.webp\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-nonconforming.webp\" target=\"_blank\">\n          <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-nonconforming.webp\" alt=\"Non-conforming product report\" width=\"1400\" height=\"1979\" loading=\"lazy\" title=\"\">\n        <\/a>\n        <figcaption>\u4e0d\u5408\u683c\u54c1\u5904\u7406\u62a5\u544a<\/figcaption>\n      <\/figure>\n      <figure>\n        <a class=\"qa-fig\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-8d-scaled.webp\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-8d-scaled.webp\" target=\"_blank\">\n          <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-8d-scaled.webp\" alt=\"8D corrective action report\" width=\"1321\" height=\"2048\" loading=\"lazy\" title=\"\">\n        <\/a>\n        <figcaption>8D Report \u2014 8D \u95ee\u9898\u89e3\u51b3\u62a5\u544a\u8868<\/figcaption>\n      <\/figure>\n      <figure>\n        <a class=\"qa-fig\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-oqc-finished.webp\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-oqc-finished.webp\" target=\"_blank\">\n          <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-oqc-finished.webp\" alt=\"Finished goods outgoing inspection report\" width=\"1400\" height=\"1932\" loading=\"lazy\" title=\"\">\n        <\/a>\n        <figcaption>\u6210\u54c1\u51fa\u8d27\u68c0\u9a8c\u62a5\u544a<\/figcaption>\n      <\/figure>\n    <\/div>\n  <\/div>\n<\/section>\n\n<section class=\"qa-sec alt\">\n  <div class=\"qa-wrap\">\n    <div class=\"qa-kicker\">06 \u2014 Records<\/div>\n    <h2>What travels with your order<\/h2>\n    <p class=\"qa-lead\">Every lot leaves a paper trail, and each record carries its own number. Ask your sales contact for the set against your batch and production issues the signed copies \u2014 we do not claim a report in every carton, we claim records you can audit.<\/p>\n\n    <div class=\"qa-recs\">\n      <div class=\"qa-rec\"><b>Incoming<\/b><span>\u6765\u6599\u68c0\u6d4b\u62a5\u544a<\/span><\/div>\n      <div class=\"qa-rec\"><b>First article<\/b><span>\u9996\u4ef6\u68c0\u6d4b\u8bb0\u5f55<\/span><\/div>\n      <div class=\"qa-rec\"><b>Patrol<\/b><span>\u5de1\u68c0\u8bb0\u5f55 \/ \u5f02\u5e38\u5355<\/span><\/div>\n      <div class=\"qa-rec\"><b>Ageing<\/b><span>\u8001\u5316\u6d4b\u8bd5\u8bb0\u5f55<\/span><\/div>\n      <div class=\"qa-rec\"><b>Pre-shipment<\/b><span>\u51fa\u8d27\u68c0\u9a8c\u62a5\u544a<\/span><\/div>\n    <\/div>\n\n    <div class=\"qa-grid2\" style=\"grid-template-columns:1fr 1fr;margin-top:28px\">\n      <figure>\n        <a class=\"qa-fig\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-oqc-housing.webp\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-oqc-housing.webp\" target=\"_blank\">\n          <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-oqc-housing.webp\" alt=\"Outgoing inspection report for diffuser housings\" width=\"1400\" height=\"1012\" loading=\"lazy\" title=\"\">\n        <\/a>\n        <figcaption>\u5916\u7f69\u51fa\u8d27\u68c0\u9a8c\u62a5\u544a \u2014 diffusers and housings are reported separately from profiles.<\/figcaption>\n      <\/figure>\n      <figure>\n        <a class=\"qa-fig\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-oqc-profile.webp\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-oqc-profile.webp\" target=\"_blank\">\n          <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/form-oqc-profile.webp\" alt=\"Outgoing inspection report for profiles\" width=\"1400\" height=\"1012\" loading=\"lazy\" title=\"\">\n        <\/a>\n        <figcaption>\u94dd\u578b\u6750\u51fa\u5382\u68c0\u9a8c\u62a5\u544a \u2014 one report per lot, signed by inspector and reviewer.<\/figcaption>\n      <\/figure>\n    <\/div>\n  <\/div>\n<\/section>\n\n<section class=\"qa-sec\">\n  <div class=\"qa-wrap\">\n    <div class=\"qa-kicker\">07 \u2014 Warranty<\/div>\n    <h2>Cover by product type<\/h2>\n    <p class=\"qa-lead\">Warranty is set per product family, not as one blanket figure. The table below follows the internal warranty schedule.<\/p>\n\n    <div class=\"qa-grid2 qa-warr\" style=\"grid-template-columns:1fr 1fr\">\n      <div class=\"qa-panel\">\n        <table class=\"qa-t\">\n          <tr><th>Product<\/th><th>Cover<\/th><\/tr>\n          <tr><td>Aluminium profiles &amp; finished luminaires<\/td><td><b>3 Jahre<\/b><\/td><\/tr>\n          <tr><td>Assembled fixtures<\/td><td><b>2 Jahre<\/b><\/td><\/tr>\n          <tr><td>LED-Leiste<\/td><td><b>2 Jahre<\/b><\/td><\/tr>\n          <tr><td>Battery and controller products<\/td><td><b>1 year<\/b><\/td><\/tr>\n          <tr><td>Spare parts \u2014 claim window<\/td><td><b>6 months<\/b> from shipment<\/td><\/tr>\n        <\/table>\n        <p class=\"qa-note\">Claims are reviewed case by case; where a fault traces to a partner process we run the remedy with that plant and remain your single contact.<\/p>\n      <\/div>\n      <figure>\n        <a class=\"qa-fig\" data-lb=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/warranty-table.webp\" href=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/warranty-table.webp\" target=\"_blank\">\n          <img decoding=\"async\" src=\"https:\/\/hlled.com\/wp-content\/uploads\/2026\/10\/warranty-table.webp\" alt=\"Internal warranty period schedule by product type\" width=\"1350\" height=\"974\" loading=\"lazy\" title=\"\">\n        <\/a>\n        <figcaption>\u5408\u8054\u7535\u5b50\u4ea7\u54c1\u8d28\u4fdd\u65f6\u95f4\u5468\u671f \u2014 the internal schedule this table is taken from.<\/figcaption>\n      <\/figure>\n    <\/div>\n  <\/div>\n<\/section>\n\n<section class=\"qa-sec alt\">\n  <div class=\"qa-wrap\">\n    <div class=\"qa-kicker\">08 \u2014 Certifications<\/div>\n    <h2>Certificates, with numbers you can check<\/h2>\n    <p class=\"qa-lead\">Our ISO certificates cover research, development and sale of LED lighting for export \u2014 they do not certify a manufacturing scope, and we do not present ourselves as a certified factory. What they do show is a management system audited to ISO 9001:2015 and ISO 14001:2015.<\/p>\n\n    <div class=\"qa-grid2\" style=\"grid-template-columns:repeat(3,1fr);gap:18px\">\n      <div class=\"qa-panel\">\n        <h3>ISO 9001:2015<\/h3>\n        <table class=\"qa-t\">\n          <tr><td>Certificate<\/td><td><b>73025Q05190113R1S<\/b><\/td><\/tr>\n          <tr><td>Scope<\/td><td>R&amp;D and sales of LED lighting fixtures (export)<\/td><\/tr>\n          <tr><td>Valid to<\/td><td>16 Jun 2028<\/td><\/tr>\n        <\/table>\n      <\/div>\n      <div class=\"qa-panel\">\n        <h3>ISO 14001:2015<\/h3>\n        <table class=\"qa-t\">\n          <tr><td>Certificate<\/td><td><b>73025E05190046R1S<\/b><\/td><\/tr>\n          <tr><td>Scope<\/td><td>R&amp;D and sales of LED lighting fixtures (export)<\/td><\/tr>\n          <tr><td>Valid to<\/td><td>16 Jun 2028<\/td><\/tr>\n        <\/table>\n      <\/div>\n      <div class=\"qa-panel\">\n        <h3>UL &amp; design<\/h3>\n        <table class=\"qa-t\">\n          <tr><td>UL file<\/td><td><b>UL-US-2433337-0<\/b><\/td><\/tr>\n          <tr><td>Standard<\/td><td>UL 1598 \u2014 LED surface-mounted luminaires<\/td><\/tr>\n          <tr><td>EU design<\/td><td><b>015058118-0001<\/b><\/td><\/tr>\n        <\/table>\n      <\/div>\n    <\/div>\n    <p class=\"qa-note\" style=\"margin-top:20px\">CE and RoHS apply across the range; UL, DLC, FCC and ENERGY STAR cover selected items. <a href=\"\/de\/certificates\/\" target=\"_blank\">See the certificate scans<\/a>.<\/p>\n  <\/div>\n<\/section>\n\n<section class=\"qa-cta\">\n  <div class=\"qa-wrap\">\n    <h2>Send us the drawing \u2014 and ask for the record<\/h2>\n    <p>A drawing, a strip width, or the reveal you have to fill. We reply with a section, a lead time and the inspection plan behind it.<\/p>\n    <a class=\"qa-btn\" href=\"\/de\/contact-us\/\" target=\"_blank\">Start an inquiry<\/a>\n  <\/div>\n<\/section>\n\n<div class=\"qa-lb\" id=\"qa-lb\" aria-hidden=\"true\">\n  <button type=\"button\" id=\"qa-lb-close\">Schlie\u00dfen Sie<\/button>\n  <img id=\"qa-lb-img\" alt=\"\">\n<\/div>\n\n<script>\n(function(){\n  var lb=document.getElementById('qa-lb'), img=document.getElementById('qa-lb-img');\n  if(!lb||!img) return;\n  function open(src,alt){img.src=src;img.alt=alt||'';lb.classList.add('on');lb.setAttribute('aria-hidden','false');document.body.style.overflow='hidden';}\n  function close(){lb.classList.remove('on');lb.setAttribute('aria-hidden','true');img.src='';document.body.style.overflow='';}\n  var sel='#qaPage .qa-fig, #qaPage .qa-shot a, #qaPage .qa-reclink';\n  document.querySelectorAll(sel).forEach(function(f){\n    f.addEventListener('click',function(e){e.preventDefault();var i=f.querySelector('img');open(f.getAttribute('href'),i?i.alt:'');});\n  });\n  lb.addEventListener('click',function(e){if(e.target===lb||e.target.id==='qa-lb-close')close();});\n  document.addEventListener('keydown',function(e){if(e.key==='Escape')close();});\n})();\n<\/script>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>How Helian inspects LED aluminium profiles: incoming, first article, in-process and pre-shipment gates, GB2828 sampling, AQL levels, test parameters and the records issued with each batch.<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","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":"disable","_kad_post_title":"hide","_kad_post_layout":"fullwidth","_kad_post_sidebar_id":"","_kad_post_content_style":"unboxed","_kad_post_vertical_padding":"hide","_kad_post_feature":"hide","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"class_list":["post-25220","page","type-page","status-publish","hentry"],"acf":[],"taxonomy_info":[],"featured_image_src_large":false,"author_info":{"display_name":"Helian LED Lighting","author_link":"https:\/\/hlled.com\/de\/author\/helian-led-lighting\/"},"comment_info":0,"_links":{"self":[{"href":"https:\/\/hlled.com\/de\/wp-json\/wp\/v2\/pages\/25220","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hlled.com\/de\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/hlled.com\/de\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/hlled.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hlled.com\/de\/wp-json\/wp\/v2\/comments?post=25220"}],"version-history":[{"count":0,"href":"https:\/\/hlled.com\/de\/wp-json\/wp\/v2\/pages\/25220\/revisions"}],"wp:attachment":[{"href":"https:\/\/hlled.com\/de\/wp-json\/wp\/v2\/media?parent=25220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}