42 Technical consulting in the field of lighting installations, lighting systems, lighting fixtures, computer hardware and computer hardware and computer software; research and development in the field of lighting installations, lighting systems, lighting fixtures, computer hardware and computer software; providing technical and consumer information in the field of lighting installations, lighting systems, lighting fixtures, computer hardware and computer software; and technical support services, namely, troubleshooting of problems in the field of lighting installations, lighting systems, lighting fixtures, computer hardware and computer software via telephone, electronic mail, remote access and in person