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Darlington, UK

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  • 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.

Darlington Borough Council chose to have a major refurbishment of residential and major roads.   

The vast scale of the refurbishment project meant that the replacement had to be split into phases and started with replacing the highest energy using lanterns on major roads in the Darlington area.  After a successful initial phase the project has now spread out into residential areas with the majority of the new lanterns being retrofitted onto the existing street lighting columns but some older lighting columns have been replaced as and when required.

Lighting Objectives

Thorn Lighting’s highly efficient CiviTEQ LED lanterns have been used throughout the major refurbishment. The Thorn lanterns were the preferred choice when the council wanted to replace old existing SON lamp technology and move to a more efficient LED type luminaire to significantly reduce DBC’s overall energy usage and CO2 emissions.

Solution

The CiviTEQ LED lantern can incorporate between 12-72 LEDS to suit the application and has 12 precise lighting distributions to allow for a variety of installation possibilities. The lanterns incorporate an R-PEC® optic to provide ‘wide street’ illumination to allow for efficiency and safety.  The fitting is well-proportioned, compact and lightweight for easy handling and installation with low windage. CiviTEQ is available in two sizes, small and large and comes with a comprehensive range of controls incorporating a Bi-Power Switch to activate or de-activate dimming on-site.

Martin Clarkson, Street Lighting Engineer for Darlington Borough Council commented “The Thorn CiviTEQ LED lantern was chosen due to its efficiency, photometric performance, low maintenance requirements and ease of installation. It offers a wide range of lumen outputs and light distribution options.  The lanterns are ordered with pre-set adaptive lighting controls to provide more measured illumination during specific times and greater energy savings”.

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