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Västra Fäladen, Sweden


  • Västra Fäladen, Sweden
  • 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


    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.

Thorn Sweden slashes energy costs for housing association with 80% saving

AB Landskronahem, which owns and manages about 4,000 apartments in the Swedish city of Landskrona, has strict environmental standards. To help keep them up, Thorn 40W exterior LED lanterns have been installed throughout the residential district of Västra Fäladen, from pedestrian routes and cycle paths to playgrounds and parking spaces.

A 3.36kW LED system of 80 Plurio and Avenue F units has superseded, on a point for point basis, an 11.2kW mercury vapour installation while still increasing illumination levels. As the lanterns employ power reduction control gear total operating load is just 2.16kW – an overall saving in running costs of 80%.

Another achievement was the reduction of glare. This was obtained by using two optical techniques – reflectors (Plurio LED) and prisms (Avenue F LED) – to deliver a mixture of asymmetric and symmetric light distributions.

The new lighting has improved living conditions with residents reporting positive experiences and feelings of greater security and safety.

The fittings were supplied pre-wired with 4m of cable to speed up installation.