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External and Floodlighting
Railway and Underground
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Lighting accounts for approximately one fifth of the world's total electricity consumption. In business, luminaires
are regularly switched on at the start of the working day and remain switched on until the last person leaves,
regardless of how often that space has been occupied throughout the day or how much natural light is present.
Saving energy is easy:-
Thorlux energy saving lighting control systems make the most of maintained illuminance, daylight linking and presence
detection (explained further in this section) to ensure optimum energy savings, often measured in real applications to
Full lighting control primarily integral to each luminaire. Modular or conventional wiring
Full lighting control for outdoor luminaires
A new era of lighting controls plus monitoring & emergency lighting reporting
Remote mounted controls, conventional wiring
Combine All Three
For Maximum Savings
The accumulation of dirt and lumen depreciation cause light loss and uncontrolled schemes are initially "over lit" to
compensate. This results in excessive energy consumption over the maintenance cycle.
Thorlux lighting controls allow luminaires to be dimmed to the required lighting level therefore avoiding over
lighting and reducing energy consumption. This initial lighting level is sustained throughout the maintenance cycle by
gradually increasing power, thereby maintaining the correct lumen output.
When daylight enters a room the lighting controls take this light into account and gradually dim the luminaires,
saving energy whilst maintaining the required light level. As daylight increases, luminaire output decreases and
luminaires may even switch off, therefore reducing energy consumption. The result is further savings in addition to
those achieved by maintained illuminance (see above).
Passive Infra-Red (PIR) sensors are used to detect movement to turn the luminaires on. After a predetermined time of
no movement the luminaires will turn off, saving energy.
Some PIRs can be programmed for "absence" mode whereby the luminaires are not initially turned on automatically by
movement, but manually by the user with a switch; the PIR will then monitor movement to turn the luminaires off
automatically after a pre-determined time.
Lighting controls that combine maintained illuminance, daylight linking and presence detection will maximise energy
savings, in some instances in excess of 70%. When the area is occupied the luminaire output will be reduced due to
levels of ambient light. Even during the short winter days there can be sufficient daylight for the luminaires to dim,
providing energy savings throughout the year. Thorlux Smart controls provide energy savings by combining maintained
illuminance, daylight linking and presence detection in a system that can be tailored to suit requirements.