Three Letters That Define an Icon
Industrial heritage, universal appeal—from factories to homes, restaurants to barns
The iconic design that started in warehouses, now illuminating spaces everywhere. For over a century, RLM has been synonymous with the classic dome reflector and spun metal shade—known as barn lights, warehouse lights, and the timeless American industrial aesthetic. Today, we certify products that honor this versatile design across all applications while maintaining the quality standards established in 1919.
The Mark of Authentic RLM Quality
Products bearing the RLM certification mark honor the iconic spun metal shade design with verified quality, construction, and performance. From its industrial warehouse origins to today's diverse applications in homes, restaurants, retail, and barns, this seal represents over a century of heritage and the most versatile aesthetic in lighting.
An Iconic Design Legacy
RLM is recognized for the iconic spun metal shade—the distinctive dome and bowl reflector design that started in industrial warehouses and became the most versatile lighting aesthetic in America. Founded in 1919, RLM established the classic design that illuminated factories and workshops, and today lights offices, retail stores, restaurants, homes, and barns—often known simply as barn lights.
Today, RLM Standards Institute certifies products that honor this iconic heritage with universal appeal. As a non-profit certification organization, we ensure modern lighting fixtures maintain the authentic RLM look, quality construction, and performance across all applications—trusted by architects, engineers, contractors, homeowners, and facility managers everywhere.
What RLM Certification Means
The RLM seal certifies products that honor the iconic spun metal shade design with quality standards spanning over a century of excellence—from industrial origins to universal modern applications in every type of space.
Certified Installations
RLM certified lighting delivers authentic quality and timeless design across diverse applications— from factories and warehouses to offices, retail stores, restaurants, homes, and barns.
Commercial Office
Classic dome pendants providing efficient task lighting in modern office environments
Modern Workspace
Suspended dome fixtures delivering uniform illumination for collaborative spaces
Commercial Exterior
Durable gooseneck wall lights showcasing the iconic RLM industrial aesthetic
Restaurant & Hospitality
Creating ambiance with authentic RLM style in dining and hospitality environments
Residential Exterior
Bringing industrial elegance to residential architecture with certified fixtures
Quality Craftsmanship
Precision-engineered spun metal shades exemplifying RLM quality standards
Why Choose RLM Certified Products?
For everyone who values quality lighting—from industrial facilities to commercial spaces to residential applications—RLM certification provides assurance, credibility, and peace of mind.
Independent Testing & Verification
As an independent, non-profit organization, RLM provides unbiased third-party testing and certification. Our rigorous evaluation process ensures products meet or exceed all specified standards.
Industry Recognition
The RLM seal has a heritage of over 100 years of recognition and trust by architects, engineers, contractors, homeowners, and facility managers as the mark of superior quality across all lighting applications.
Specification Confidence
When you specify RLM certified products, you eliminate uncertainty. Every product bearing our seal meets comprehensive quality specifications, simplifying procurement decisions.
Legacy of Excellence
The century-long heritage of RLM quality standards has made the name synonymous with reliability. Join the generations of professionals who trust the RLM standard.
Join the RLM Standards Institute
Are you a manufacturer committed to excellence in lighting? Partner with us to demonstrate your commitment to quality and gain the competitive advantage of RLM certification—recognized across industrial, commercial, and residential markets.
Get in Touch
Have questions about RLM certification or standards? Our team is here to help.
RLM Standards Institute
Email: info@rlmlighting.com