Direct lighting is the lighting provided from a source without reflection from other surfaces. The advantage of direct lighting are, they are very energy effective lighting system. They are well suited for zonal or accent lighting. They can create a vivid environment with attractive light and shadow patterns e.G. On wall surfaces. Luminaries are good source for direct lighting. Fluorescent luminaries are ideal for direct lighting applications in small or open plan office, libraries, classrooms, laboratories, media centers, computer labs etc.
Lighting provided by reflection usually from wall or ceiling surfaces is indirect lighting. They create a soft, undisturbing environment suitable for concentrated work or viewing paintings or drawings. Luminaries are suspended from the ceiling or wall mounted and distributes light mainly upwards so they get reflected off the ceiling or the walls. They largely used in halls, restaurants, official premises etc. Heavy-duty luminaries are ideal for industrial direct lighting system. Halogens, floodlights, fluorescent lamps are ideal for industrial direct lighting.