To provide an energy efficient lighting, the general lighting can be lower than the illumination of the working area. Combined lighting with direct and indirect components provides good visual comfort both in the room and on the work surface.

Lighting criteria for task lighting
- illuminance level dependent on activity
- illuminance distribution for avoiding direct- and secondary glare
- cut-off angle and position of the luminaire restrict glare and increase visual comfort
- the choice of lamp determines the light colour and colour rendition