Performance Lighting Systems - Murphy Lighting Systems Murphy Lighting Systems has been providing Lighting Systems for theatres, the motion picture industries, churches, theme parks, cruise ships, and schools for over 40 years. MLS has been owned by the s Murphy Lighting Systems has been providing performance lighting systems, dimming, control and rigging equipment to the television, theatre, and motion picture industries, churches, theme parks, and schools. Supply and service architectural dimming and control systems for convention centers, ballrooms, restaurants and other places of assembly. Established in 1979.