Smart Bad Hersfeld

Smart street lights set new standards in public lighting

Towns and cities are faced with the challenge a of lighting public spaces to improve the quality of life for citizens and support economic development while reducing energy consumption and preserving the environment. A firm believer in leveraging digital technology to find long-term solutions, the local authorities of Bad Hersfeld chose a group of hi-tech partners to implement a smart lighting network that would help it and other cities achieve all of the above. The town wanted a lighting system that would: 

  • adapt the light levels according to traffic density;
  • adjust the colour temperature (from 2,200K to 3,000K) based on the time of day;
  • manage the light distribution depending on the weather;
  • enable it to collect data regarding the operating status of each luminaire and 
  • integrate other smart additional devices.

Smart investment in scalable public lighting infrastructure

The local authorities wanted futureproof infrastructure that would enable them to use the latest technology available today and that could be scaled up over time. They chose our high-performing IZYLUM and FLEXIA luminaires fitted with our FlexiWhite system that adapts the colour temperature to preserve the environment. All of the street lights are controlled by Schréder EXEDRA, which has already been successfully deployed in other areas of the town.

The right light at the right moment to ensure safety with less energy

An initial pilot project was set-up with 77 IZYLUM and 88 FLEXIA FG Midi street lights in 2 different districts of the town. It demonstrated that the new lighting system did indeed deliver a light that meets the exact needs of the area. 

The street lights also integrate sensors that record and capture data regarding the weather, traffic, speed and environment which is sent to a platform developed by our partner Urban Lighting Innovations GmbH [ui!]. The UrbanPulse platform then assesses the data in real-time and makes it available for other applications. 

Consequently, the lighting in these areas is adapted to the real-time traffic and road use. This will maximise safety for pedestrians and motorists during peak hour traffic and save energy when there is very little or no movement. By dimming the light when it is not needed, the city will also dramatically reduce light pollution.

Smart lighting to ensure safety in all weather

In the residential areas, the street lights have also been fitted with different optics so that the light will adapt to the weather conditions. As pavements and roads can be slippery when it rains, the light will increase visibility so people can adapt their behaviour, thus increasing safety.

Light that adapts to preserve the environment at night

The street lights are also equipped with our FlexiWhite solution which adjusts the colour temperature. They switch between a bright white light in the morning when people need to be alert and a warm white light in the evening to protect our skies and wildlife. The solution is managed by Schréder EXEDRA.

Bad Hersfeld


Bad Hersfeld Council


Urban Lighting Innovations GmbH
Urban Software Institute GmbH
Deutsche Bank
Technische Universität Berlin