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Chongqing Longxing, China

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  • Chongqing Longxing
  • Chongqing Longxing
  • Chongqing Longxing
  • Chongqing Longxing
  • 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

    Presence: Lights automatically turn on/off with movement. Absence: Lights automatically turn off and must be manually switched on.

  • Daylight detection

    Daylight detection

    Artificial lighting which responds to the natural light conditions.

  • Constant illuminance

    Constant illuminance

    A function designed to produce correct light 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 can be installed 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

    Lighting is zoned according to area use.

  • Maintenance schedule

    Maintenance schedule

    Maintenance must be performed in response 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

    Results of actions can be quickly seen as increased or decreased energy use to encourage responsible energy consumption.

The new Chongqing Longxing Football Stadium was originally designed for the 2023 AFC Asian Cup. As well as being one of the biggest stadiums in the country, it is capable of hosting the most prestigious sporting competition events and is located in the city of Chongqing which has the largest population in western China.

Thorn Lighting has enjoyed working on many projects with China Construction 8th Engineering Division Corporation, and was pleased to assist with this new stadium lighting project from the beginning.

Project Manager Luke Zhang said, “Thorn Lighting was involved in this project since the spec-in stage and the lighting solution we provided perfectly met with the technical requirements needed to achieve FIFA Lighting Standard A & AFC Lighting Category 1.”

In addition to lighting design, Thorn assisted in the installation and commissioning of the lighting solution, using more than 400 Champion floodlights, making Chongqing Longxing Stadium the first one to have been completed and delivered among the 8 new stadiums which were meant for the 2023 AFC Asian Cup and which were commenced construction during the same period.

But why was this luminaire chosen? “Champion was selected as the lighting solution for this project thanks to its technical qualities for TV broadcasting. It has a colour rendering index (CRI) up to 90 and a colour temperature of 5700K. The R9 CRI of Champion is greater than 70, which is far higher than the standard requirements for normal TV broadcasting (20) and 4K high-definition TV broadcasting (40). In addition, the Television Lighting Consistency Index (TLCI) is up to 90, and the Flicker index <1%,” Luke explained.

The luminaires were installed on both the inside and outside of the tracks, avoiding areas where FIFA standard and JGJ153-2016 standard are not recommended, so as to reduce glare to athletes. The distance between luminaires is 1.5m, which ensures that the luminaires will not block the light from neighbouring luminaires and also achieves a continuous and uniform lit effect. The aiming angle of the luminaires is less than 60 degrees. By accurately adjusting the aiming direction of each set of luminaire, the final maximum glare is 31.6, which is far less than 40 which was a requirement of the customer.

“Thanks to Champion floodlights and the support from everyone involved in this project, from design right through to installation, we have achieved a lighting solution that is of a very high standard technically, and will undoubtedly be recognised as one of the most significant stadium lighting projects in western China.”