Over-illumination at night causes unnecessary glare and light pollution. Light pollution occurs when light is emitted into the atmosphere and reflects off of dust, water vapour and particles in the air, particularly when overcast. Reducing upward light emissions will significantly reduce light pollution. Light that is directed on areas of interest provides visible spatial depth, aiding the feeling of safety and allows safe navigation, as well as reducing the spill of illumination.
The ecology and behaviour of nocturnal animals can be significantly disrupted by artificial light. It can negatively impact upon their natural rhythm, diet and sleeping pattern, which is particularly important for endangered or threatened species.
ULOR (Upwards Light Output Ratio) describes the amount of upward light distributed from a luminaire. For urban lighting solutions, this ratio needs to be as small as possible, to ensure that the output is angled downwards, only where it needs to be.
Light spill can also affect other people. In residential areas, uncontrolled light into homes can cause disruption to sleep, which can have negative effects on people’s wellbeing. This particularly affects houses that are adjacent to commercial properties.
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For an overview of our urban lighting capabilities, download our sector leaflet. This provides a snapshot of our case studies, products and range of urban lighting solutions.Download
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