Reducing the environmental footprint of church lighting: matching façade shape and lowering luminance with the EcoSky LED
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Abstract
The lighting of the Church of the Three Kings in Logatec, Slovenia was replaced in 2014. The power of the installation was reduced 96% from 1.6 kW to 58 W, and spill light from the site was effectively eliminated. As a result, the church is no longer visible in nighttime satellite images of the area, indicating a reduction of waste light from the site of at least a factor of 30. This article discusses the concept of sustainability with regards to cultural heritage lighting, within the context of this example.
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sustainable lighting, light pollution, remote sensing, church lighting, architectural lighting, VIIRS DNB
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