direct, diffuse

A direct, diffuse general lighting designates an even illumination with respect to a horizontal working plane. The architecture is visible and it is possible to orientate oneself in the room.

Direct, diffuse light produces a soft illumination with little shadow and reflection. The limited formation of shadow results in weak modelling capabilities. Shapes and surface textures are only slightly emphasised. One feature of using fluorescent lamps for the general lighting is an efficient use of energy.