Commercial Lighting Supply headquarters in Knoxville, TN, featuring its commercial LED lighting showroom, office building, and landscaped exterior.

COMMERCIAL LIGHTING SUPPLY / EST. 1996

Commercial Lighting for Every Commercial Space.

Commercial LED lighting, industrial fixtures, and specification-grade lighting solutions for projects of every scale.

INDOOR & OUTDOOR LIGHTING · COMMERCIAL & INDUSTRIAL · NATIONWIDE SUPPLY

THE COMMERCIAL LIGHTING SOURCE

Built for the Demands of Commercial Lighting.

Commercial Lighting Supply provides commercial indoor lighting, commercial outdoor lighting, industrial LED lighting, exit and emergency lighting, LED replacement lamps, and lighting controls and electrical supplies. From warehouse high bays and parking lot fixtures to office troffers, wall packs, and retrofit solutions, our catalog helps contractors, electricians, facility managers, and businesses compare the specifications and configurations that matter for each project.

TRUSTED MANUFACTURERS

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CLS / TECHNICAL LIBRARY

Commercial Lighting Resource Center

Technical guidance for better lighting decisions. Explore fixture selection, photometric planning, LED retrofits, lighting controls, and application-specific specifications—then compare the right equipment for your project.

Explore All Technical Guides

Planning a project? Start with the fundamentals, then compare products and request specification support.

KNOWLEDGE. INVENTORY. EXPERIENCE.

Commercial Lighting Expertise Since 1996.

Based in Knoxville, Tennessee, Commercial Lighting Supply has served contractors, electricians, facility managers, businesses, and property owners since 1996. Our team combines decades of lighting experience with a nationwide catalog of commercial LED fixtures, industrial lighting, emergency lighting, replacement lamps, and electrical supplies—helping customers find dependable products and evaluate the specifications needed for new construction, retrofit, and facility maintenance.

About Commercial Lighting Supply