ABSTRACT
Safety should be ensured in all circumstances, but different emphasis is placed on visual performance and the appearance of the interior, depending on the nature of the interior and type of task or activity. For example, lighting for a tool room in a factory should place far more emphasis on lighting the task and on visual performance than on the pleasant appearance of the room, but in a restaurant
or a hotel room, the priorities should be reversed. In all cases, energy consumption and cost-effectiveness of a lighting system should be considered.
