The Hall lighting in UCD’s O’Reilly Hall uses recessed Spectra Luminaires with dimmable Metal Halide lamps. This Hall is well known for its graduation, conference and seminar activities. The Spectra lighting system was specified by VMRA and is ideal for Auditoriums and Conference Halls with high ceilings, as it can provide high light levels, has lamp wattages to 400w and has a choice of reflector systems and accessories.