Any Nationally Recognized Test Lab (NRTL) that is certified by OSHA (Occupational Safety and Health Administration, U.S. Department of Labor) can provide Safety Certification testing for LED light fixtures. Today there are over 30 NRTL accredited Labs. Solas Ray Lighting’s NRTL provider is Intertek/ETL, an industry leader for over 100 years in 1,000 locations in over 100 countries.