Respect for the dark and a balance between the needs of people as users of light and consideration of the climate, flora and fauna – these are the criteria by which lighting concepts for outdoor spaces are measured today. WE-EF has developed ecologically compatible lighting solutions that it calls “Wild-Light,” which enable adaptive lighting of streets, paths and open spaces – not just with regard to the brightness level, but also the colour temperature.
Dynamic Light Temperatures and Intensities meet different needs of humans and animals
Extremely warm-coloured light is particularly kind to animals, insects or nocturnal mammals. However, the colours and contrasts of such light are not as good for the human eye as conventional LEDs in warm white with 3000 K. Wild-Light offers a solution to this dilemma in the form of an integrated system of adaptive lighting technology, sensors and connectivity.
One luminaire, two colour temperatures
People who use streets, paths or open spaces in the dark want to feel safe and have good visual orientation. Paths or destinations such as car parks or bus stops should be visible from afar and therefore continuously illuminated at night, as laid down in the relevant standards such as EN-13201-2. How can such requirements be reconciled with optimal protection of the environment, for example, in or near nature reserves and similar sensitive areas? WE-EF’s answer is Wild-Light lighting technology. It uses the scope for adaptive light that is opened up by the new version of DIN 13201-1:2021-09, not just to gradate the illuminance level, but also to vary the colour temperature – a factor that is particularly important for wildlife.
As the OLC® One LED Concept LED lens systems from WE-EF follow the multi-layer principle, each individual LED also illuminates the entire assessment field with Wild-Light. Illumination layers are created that add up evenly and efficiently – regardless of the activated colour temperature. This means that Wild-Light can also be combined with all OLC® light distributions.
Timer or motion sensor control
The different-coloured LED modules are each supplied by one DALI ballast per colour channel. There are two Wild-Light control variants: “Wild-Light Advanced” and “Wild-Light Motion.”
“Wild-Light Advanced” is a time-based control. Both colour temperatures are controlled independently of one another with the well-proven Eco Step Dim® Advanced control system from WE-EF with, for example, 3000 K in the two hours after sunset or before sunrise and during the rest of the night with 2200 K. The LEDs can also be dimmed to pre-programmed values.
In contrast, “Wild-Light Motion” is based on motion detection. The ecologically compatible light colour 2200 K stays on throughout the night, is not controlled and provides basic lighting. The 3000 K channel is switched on via a connected motion detector and can be controlled, for example, by the Eco Step Dim® Motion system. WE-EF luminaires with an appropriate Zhaga “Book 18” socket can be fitted with sensors; with other luminaires a separate motion box houses the additional components
Case Study: Kingston Parkland
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With the Kingston Parklands near the Tasmanian capital Hobart, the landscape architects from Playstreet have created a green park and play oasis on the site of the former Kingston High School in the centre of the ever-growing community of Kingborough. The extensive leisure areas offer an attractive range of entertainment and activities for all age groups. The lighting of the site has been designed with the utmost consideration for the diverse wildlife that inhabits the area, whilst ensuring good visual conditions in the areas used by people at night.
Read MoreAn element of the WE-EF sustainability strategy
With Wild-Light, WE-EF is developing lighting solutions that minimise the negative impact on the environment, save energy as well as offer users convenience and safety. The technology is based on proven components and offers the quality, reliability and durability that the WE-EF brand stands for as an all-round sustainable concept.
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