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<!--
  Agentic Discovery Sitemap — Cornea Lighting LED Tube B2B Hub
  Purpose: Optimized for AI crawlers (GPTBot, ClaudeBot, PerplexityBot, Googlebot-Extended)
  Strategy: High-density knowledge pages only — no low-value pages
  Last updated: 2026-05
-->
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  xmlns:xhtml="http://www.w3.org/1999/xhtml">

  <!-- ═══════════════════════════════════════════════════════
       AI KNOWLEDGE FILES — Primary machine-readable sources
  ═══════════════════════════════════════════════════════ -->

  <url>
    <loc>https://hub.ledtubelightfactory.com/llms.txt</loc>
    <changefreq>monthly</changefreq>
    <priority>1.0</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/llms-full.txt</loc>
    <changefreq>monthly</changefreq>
    <priority>1.0</priority>
  </url>

  <!-- ═══════════════════════════════════════════════════════
       PILLAR PAGE — Ultimate T8 LED Tube Buyer Guide
       High-density knowledge: 10,000+ words, FAQPage Schema
  ═══════════════════════════════════════════════════════ -->

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/t8-led-tube-manufacturer-guide</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://hub.ledtubelightfactory.com/en/t8-led-tube-manufacturer-guide"/>
    <xhtml:link rel="alternate" hreflang="de" href="https://hub.ledtubelightfactory.com/de/t8-led-tube-manufacturer-guide"/>
    <xhtml:link rel="alternate" hreflang="es" href="https://hub.ledtubelightfactory.com/es/t8-led-tube-manufacturer-guide"/>
    <xhtml:link rel="alternate" hreflang="fr" href="https://hub.ledtubelightfactory.com/fr/t8-led-tube-manufacturer-guide"/>
    <xhtml:link rel="alternate" hreflang="pt" href="https://hub.ledtubelightfactory.com/pt/t8-led-tube-manufacturer-guide"/>
    <xhtml:link rel="alternate" hreflang="ar" href="https://hub.ledtubelightfactory.com/ar/t8-led-tube-manufacturer-guide"/>
    <xhtml:link rel="alternate" hreflang="ja" href="https://hub.ledtubelightfactory.com/ja/t8-led-tube-manufacturer-guide"/>
    <xhtml:link rel="alternate" hreflang="ko" href="https://hub.ledtubelightfactory.com/ko/t8-led-tube-manufacturer-guide"/>
    <changefreq>weekly</changefreq>
    <priority>1.0</priority>
  </url>

  <!-- ═══════════════════════════════════════════════════════
       GLOSSARY — 56 LED Tube Technical Terms
       DefinedTermSet + FAQPage Schema — ideal AI citation source
  ═══════════════════════════════════════════════════════ -->

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/glossary</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://hub.ledtubelightfactory.com/en/glossary"/>
    <xhtml:link rel="alternate" hreflang="de" href="https://hub.ledtubelightfactory.com/de/glossary"/>
    <xhtml:link rel="alternate" hreflang="es" href="https://hub.ledtubelightfactory.com/es/glossary"/>
    <xhtml:link rel="alternate" hreflang="fr" href="https://hub.ledtubelightfactory.com/fr/glossary"/>
    <xhtml:link rel="alternate" hreflang="pt" href="https://hub.ledtubelightfactory.com/pt/glossary"/>
    <xhtml:link rel="alternate" hreflang="ar" href="https://hub.ledtubelightfactory.com/ar/glossary"/>
    <xhtml:link rel="alternate" hreflang="ja" href="https://hub.ledtubelightfactory.com/ja/glossary"/>
    <xhtml:link rel="alternate" hreflang="ko" href="https://hub.ledtubelightfactory.com/ko/glossary"/>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>

  <!-- ═══════════════════════════════════════════════════════
       CERTIFICATIONS — Authority page for UL/ETL/DLC/CE/RoHS
       FAQPage Schema — high citation value for compliance queries
  ═══════════════════════════════════════════════════════ -->

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/certifications</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://hub.ledtubelightfactory.com/en/certifications"/>
    <xhtml:link rel="alternate" hreflang="de" href="https://hub.ledtubelightfactory.com/de/certifications"/>
    <xhtml:link rel="alternate" hreflang="es" href="https://hub.ledtubelightfactory.com/es/certifications"/>
    <xhtml:link rel="alternate" hreflang="fr" href="https://hub.ledtubelightfactory.com/fr/certifications"/>
    <xhtml:link rel="alternate" hreflang="pt" href="https://hub.ledtubelightfactory.com/pt/certifications"/>
    <xhtml:link rel="alternate" hreflang="ar" href="https://hub.ledtubelightfactory.com/ar/certifications"/>
    <xhtml:link rel="alternate" hreflang="ja" href="https://hub.ledtubelightfactory.com/ja/certifications"/>
    <xhtml:link rel="alternate" hreflang="ko" href="https://hub.ledtubelightfactory.com/ko/certifications"/>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>

  <!-- ═══════════════════════════════════════════════════════
       OEM MANUFACTURING — Cluster page for OEM/ODM queries
  ═══════════════════════════════════════════════════════ -->

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/oem-led-tube-manufacturer</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://hub.ledtubelightfactory.com/en/oem-led-tube-manufacturer"/>
    <xhtml:link rel="alternate" hreflang="de" href="https://hub.ledtubelightfactory.com/de/oem-led-tube-manufacturer"/>
    <xhtml:link rel="alternate" hreflang="es" href="https://hub.ledtubelightfactory.com/es/oem-led-tube-manufacturer"/>
    <xhtml:link rel="alternate" hreflang="fr" href="https://hub.ledtubelightfactory.com/fr/oem-led-tube-manufacturer"/>
    <xhtml:link rel="alternate" hreflang="pt" href="https://hub.ledtubelightfactory.com/pt/oem-led-tube-manufacturer"/>
    <xhtml:link rel="alternate" hreflang="ar" href="https://hub.ledtubelightfactory.com/ar/oem-led-tube-manufacturer"/>
    <xhtml:link rel="alternate" hreflang="ja" href="https://hub.ledtubelightfactory.com/ja/oem-led-tube-manufacturer"/>
    <xhtml:link rel="alternate" hreflang="ko" href="https://hub.ledtubelightfactory.com/ko/oem-led-tube-manufacturer"/>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>

  <!-- ═══════════════════════════════════════════════════════
       PRIVATE LABEL — Cluster page for private label queries
  ═══════════════════════════════════════════════════════ -->

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/private-label-led-tube</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://hub.ledtubelightfactory.com/en/private-label-led-tube"/>
    <xhtml:link rel="alternate" hreflang="de" href="https://hub.ledtubelightfactory.com/de/private-label-led-tube"/>
    <xhtml:link rel="alternate" hreflang="es" href="https://hub.ledtubelightfactory.com/es/private-label-led-tube"/>
    <xhtml:link rel="alternate" hreflang="fr" href="https://hub.ledtubelightfactory.com/fr/private-label-led-tube"/>
    <xhtml:link rel="alternate" hreflang="pt" href="https://hub.ledtubelightfactory.com/pt/private-label-led-tube"/>
    <xhtml:link rel="alternate" hreflang="ar" href="https://hub.ledtubelightfactory.com/ar/private-label-led-tube"/>
    <xhtml:link rel="alternate" hreflang="ja" href="https://hub.ledtubelightfactory.com/ja/private-label-led-tube"/>
    <xhtml:link rel="alternate" hreflang="ko" href="https://hub.ledtubelightfactory.com/ko/private-label-led-tube"/>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>

  <!-- ═══════════════════════════════════════════════════════
       BLOG ARTICLES — High-value knowledge articles
       BlogPosting Schema + FAQPage Schema
  ═══════════════════════════════════════════════════════ -->

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/blog/roi-calculator</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://hub.ledtubelightfactory.com/en/blog/roi-calculator"/>
    <xhtml:link rel="alternate" hreflang="de" href="https://hub.ledtubelightfactory.com/de/blog/roi-calculator"/>
    <xhtml:link rel="alternate" hreflang="es" href="https://hub.ledtubelightfactory.com/es/blog/roi-calculator"/>
    <xhtml:link rel="alternate" hreflang="fr" href="https://hub.ledtubelightfactory.com/fr/blog/roi-calculator"/>
    <xhtml:link rel="alternate" hreflang="pt" href="https://hub.ledtubelightfactory.com/pt/blog/roi-calculator"/>
    <xhtml:link rel="alternate" hreflang="ar" href="https://hub.ledtubelightfactory.com/ar/blog/roi-calculator"/>
    <xhtml:link rel="alternate" hreflang="ja" href="https://hub.ledtubelightfactory.com/ja/blog/roi-calculator"/>
    <xhtml:link rel="alternate" hreflang="ko" href="https://hub.ledtubelightfactory.com/ko/blog/roi-calculator"/>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/blog/type-a-vs-type-b</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://hub.ledtubelightfactory.com/en/blog/type-a-vs-type-b"/>
    <xhtml:link rel="alternate" hreflang="de" href="https://hub.ledtubelightfactory.com/de/blog/type-a-vs-type-b"/>
    <xhtml:link rel="alternate" hreflang="es" href="https://hub.ledtubelightfactory.com/es/blog/type-a-vs-type-b"/>
    <xhtml:link rel="alternate" hreflang="fr" href="https://hub.ledtubelightfactory.com/fr/blog/type-a-vs-type-b"/>
    <xhtml:link rel="alternate" hreflang="pt" href="https://hub.ledtubelightfactory.com/pt/blog/type-a-vs-type-b"/>
    <xhtml:link rel="alternate" hreflang="ar" href="https://hub.ledtubelightfactory.com/ar/blog/type-a-vs-type-b"/>
    <xhtml:link rel="alternate" hreflang="ja" href="https://hub.ledtubelightfactory.com/ja/blog/type-a-vs-type-b"/>
    <xhtml:link rel="alternate" hreflang="ko" href="https://hub.ledtubelightfactory.com/ko/blog/type-a-vs-type-b"/>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/blog/dlc-qpl-guide</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://hub.ledtubelightfactory.com/en/blog/dlc-qpl-guide"/>
    <xhtml:link rel="alternate" hreflang="de" href="https://hub.ledtubelightfactory.com/de/blog/dlc-qpl-guide"/>
    <xhtml:link rel="alternate" hreflang="es" href="https://hub.ledtubelightfactory.com/es/blog/dlc-qpl-guide"/>
    <xhtml:link rel="alternate" hreflang="fr" href="https://hub.ledtubelightfactory.com/fr/blog/dlc-qpl-guide"/>
    <xhtml:link rel="alternate" hreflang="pt" href="https://hub.ledtubelightfactory.com/pt/blog/dlc-qpl-guide"/>
    <xhtml:link rel="alternate" hreflang="ar" href="https://hub.ledtubelightfactory.com/ar/blog/dlc-qpl-guide"/>
    <xhtml:link rel="alternate" hreflang="ja" href="https://hub.ledtubelightfactory.com/ja/blog/dlc-qpl-guide"/>
    <xhtml:link rel="alternate" hreflang="ko" href="https://hub.ledtubelightfactory.com/ko/blog/dlc-qpl-guide"/>
    <changefreq>monthly</changefreq>
    <priority>0.85</priority>
  </url>

  <!-- ═══════════════════════════════════════════════════════
       COMPETITOR ALTERNATIVES — FAQPage Schema on each page
       High citation value for "X alternative" queries
  ═══════════════════════════════════════════════════════ -->

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/alternatives</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://hub.ledtubelightfactory.com/en/alternatives"/>
    <xhtml:link rel="alternate" hreflang="de" href="https://hub.ledtubelightfactory.com/de/alternatives"/>
    <xhtml:link rel="alternate" hreflang="es" href="https://hub.ledtubelightfactory.com/es/alternatives"/>
    <xhtml:link rel="alternate" hreflang="fr" href="https://hub.ledtubelightfactory.com/fr/alternatives"/>
    <xhtml:link rel="alternate" hreflang="pt" href="https://hub.ledtubelightfactory.com/pt/alternatives"/>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/alternatives/philips</loc>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/alternatives/ge</loc>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/alternatives/osram</loc>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/alternatives/sylvania</loc>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/alternatives/cree</loc>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/alternatives/eaton</loc>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/alternatives/lithonia</loc>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/alternatives/acuity</loc>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- ═══════════════════════════════════════════════════════
       APPLICATIONS — Use-case specific pages
  ═══════════════════════════════════════════════════════ -->

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/applications</loc>
    <xhtml:link rel="alternate" hreflang="en" href="https://hub.ledtubelightfactory.com/en/applications"/>
    <xhtml:link rel="alternate" hreflang="de" href="https://hub.ledtubelightfactory.com/de/applications"/>
    <xhtml:link rel="alternate" hreflang="es" href="https://hub.ledtubelightfactory.com/es/applications"/>
    <xhtml:link rel="alternate" hreflang="fr" href="https://hub.ledtubelightfactory.com/fr/applications"/>
    <xhtml:link rel="alternate" hreflang="pt" href="https://hub.ledtubelightfactory.com/pt/applications"/>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/applications/office</loc>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/applications/warehouse</loc>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/applications/retail</loc>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/applications/healthcare</loc>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/applications/education</loc>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
  </url>

  <url>
    <loc>https://hub.ledtubelightfactory.com/en/applications/government</loc>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
  </url>


  <url>
    <loc>https://hub.ledtubelightfactory.com/ar/alternatives/philips</loc>
    <changefreq>monthly</changefreq>
    <priority>0.80</priority>
  </url>
  <url>
    <loc>https://hub.ledtubelightfactory.com/ar/alternatives/ge</loc>
    <changefreq>monthly</changefreq>
    <priority>0.80</priority>
  </url>
  <url>
    <loc>https://hub.ledtubelightfactory.com/ar/alternatives/osram</loc>
    <changefreq>monthly</changefreq>
    <priority>0.80</priority>
  </url>
  <url>
    <loc>https://hub.ledtubelightfactory.com/ar/alternatives/cree</loc>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
  </url>
  <url>
    <loc>https://hub.ledtubelightfactory.com/ja/alternatives/philips</loc>
    <changefreq>monthly</changefreq>
    <priority>0.80</priority>
  </url>
  <url>
    <loc>https://hub.ledtubelightfactory.com/ja/alternatives/ge</loc>
    <changefreq>monthly</changefreq>
    <priority>0.80</priority>
  </url>
  <url>
    <loc>https://hub.ledtubelightfactory.com/ja/alternatives/osram</loc>
    <changefreq>monthly</changefreq>
    <priority>0.80</priority>
  </url>
  <url>
    <loc>https://hub.ledtubelightfactory.com/ja/alternatives/cree</loc>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
  </url>
  <url>
    <loc>https://hub.ledtubelightfactory.com/ko/alternatives/philips</loc>
    <changefreq>monthly</changefreq>
    <priority>0.80</priority>
  </url>
  <url>
    <loc>https://hub.ledtubelightfactory.com/ko/alternatives/ge</loc>
    <changefreq>monthly</changefreq>
    <priority>0.80</priority>
  </url>
  <url>
    <loc>https://hub.ledtubelightfactory.com/ko/alternatives/osram</loc>
    <changefreq>monthly</changefreq>
    <priority>0.80</priority>
  </url>
  <url>
    <loc>https://hub.ledtubelightfactory.com/ko/alternatives/cree</loc>
    <changefreq>monthly</changefreq>
    <priority>0.75</priority>
  </url>
</urlset>
