In large rooms such as religious buildings, the light of wall directed towards the ceiling or roof emphasises the prestigious effect of the architecture. They aim to photometrically optimise the light output ratio and light distribution. As such, these lights are predestined for economical indirect lighting. Wall lights as floor washlights safely and reliably illuminate circulation routes. Some wall lights have both upward and downward light emission and create magical grazing light, which is ideal for restaurants or hotels for example.