Still, when choosing an experienced professional for the design of information-technology office space, it is useful to possess a basic understanding of the recommended standards and guidelines that are known to assure quality performance. These standards and guidelines, along with definitions of common terms used by lighting designers, are presented and discussed below. Sufficient overall light should be provided in the workplace, with focal light on the visual task. Visual conditions are improved if the visual task can be distinguished from its surroundings by being brighter or more contrasting. Light must be free from disability glare or discomfort glare.
Glare is bright light, which can interfere with visual perception.
Light sources should not be a source of glare. Enough light though, should reach the ceiling in order to avoid gloomy conditions. Light sources should be selected with regard to color-rendering needs. Dull uniformity should be avoided. Small points of light from low-wattage light sources can contribute sparkle without glare.