Traditional Y lights, Helsinki city centre

Street lighting in Helsinki will be upgraded in phases to more energy-efficient lights. In Kalevankatu, the upgrade has been carried out respecting traditions when custom-made LED light sources were installed in the old-fashioned vintage hanging lights dating back to the 1930s. When street lighting is upgraded, in addition to energy efficiency, the historical cityscape aspect is also taken into account in lighting design. In Kalevankatu between Mannerheimintie and Yrjönkatu, LED lights were replaced with old 1930s lights. The original so-called small Y lights were replaced with a larger model of the same family of light fittings, found in the recycling storeroom. That way, it was possible for the light fittings to accommodate new electronics and the required cooling.