The new installation at VfB Stuttgart provides outstanding light quality meeting the requirements of DIN 12193.
- Lamp efficacy
Lamp efficacy
Ensuring the lamp efficiently converts electricity into light (lm/W).
- Ballast classification
Ballast classification
Controlling the electricity supply to the lamp (Energy Efficiency Index).
- Luminaire distribution
Luminaire distribution
Controlling light emission using optics which bend and shape the light to the correct location.
- System efficacy
System efficacy
Combining optical and thermal control within the luminaire (luminaire lm/W).
- Presence/absence detection
Presence/absence detection
Providing lighting only when it’s needed.
- Daylight detection
Daylight detection
Reducing waste light during daylight hours.
- Constant illuminance
Constant illuminance
Producing the correct lighting levels for the duration of the maintenance period.
- Task-scene setting
Task-scene setting
Allowing the user to set scenes and adapt the lighting to different tasks.
- Timed off
Timed off
Automatic cut-off to turn all lights off during unoccupied hours.
- Task lighting
Task lighting
Lighting task areas with the correct amount of light.
- Zoning of lighting
Zoning of lighting
Zoning lighting in accordance to occupancy patterns or window location.
- Maintenance schedule
Maintenance schedule
Tailoring maintenance schedules in accordance to product age, performance and environment.
- Waste light
Waste light
Eliminating waste light which does not hit the intended target.
- Reflectance
Reflectance
Taking advantage of light which is reflected from the surface within the space.
- Visible smart metering
Visible smart metering
Enabling results of actions to be quickly seen as increased or decreased energy use to encourage responsible energy consumption.
The challenge
Thorn recently provided new lighting for three training pitches for VfB Stuttgart, one of the top football clubs in Germany’s Bundesliga.
It’s the latest of a number of projects that Thorn has been involved with at the club, including lighting for both indoor and outdoor areas.
VfB Stuttgart wanted the three pitches, which have recently been completely rebuilt, to be lit to 300 lux in accordance with the DIN 12193 standard for sports lighting, with the option of increasing light levels in future by adding more luminaires. Glare had to be very carefully controlled because the pitches are located near to a major road, and the positions of the six 25-metre poles that hold the luminaires was already determined for geological reasons.
The lighting solution
Thorn installed 60 Altis LED luminaires, designed specifically for sport and area lighting. Altis LED can be equipped with one, two or three LED modules providing a total of up to 176,000 lumens of light, and its flexible optical system enables numerous combinations and configurations, minimising the number of luminaires needed in an installation.
Altis LED’s modular construction provides the possibility to not only mix different optics, but also to tilt each individual LED module to optimise the lighting design process. At VfB Stuttgart, a combination of medium and wide-beam versions with symmetrical distribution were used, with modules adjusted to achieve the right distribution of light. On the two larger pitches, luminaires with three LED modules were used, while for the smaller pitch, luminaires with two modules were installed.
The result
The new installation at VfB Stuttgart provides outstanding light quality for these important training areas, with a neutral colour temperature of 4000K and a colour-rendering index (CRI) of 70. The light meets the requirements of DIN 12193, which calls for 300 lux, a minimum-to-average uniformity ratio of 0.7 and a glare rating below 50. The Altis LED luminaires are arranged vertically on the specially-made 24-26-metre poles, creating an impressive daytime appearance. It’s a great result for VfB Stuttgart, especially as the club prepares to host games for the 2024 European Championship.
Marcus Bretschneider, Division Manager, Arena Operations and Services at VfB Stuttgart, said:
“Thanks to optimised lighting technology and flexible mounting options, we were able to achieve with the Altis LED floodlight from Thorn standard-compliant illumination of our training courses in the midst of a critical environment right next to a busy federal highway. The lighting impresses with its uniformity and cost-effectiveness, thus ensuring an optimal lighting solution for our training pitches.”