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1. Electrical & Municipal Fire-Code Disclaimer
All wiring diagrams, copper resistance tables, and NEC Article 725 / Article 411 Class 2 references published on litnumbers.com are provided for educational planning and architectural specification support. Line-voltage 120V AC connections supplying Class 2 LED drivers must always be installed by a licensed electrician in compliance with local building codes, UL listing instructions, and municipal fire-marshal visibility ordinances.
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