INTRODUCTION
Control
With the right presence detector, even warehouses
with high bay lighting can benefit from excellent
energy savings when the space is unoccupied.
Using absence detectors means the Thorn Hi-Rack
luminaires must be turned on when entering the
space – maximising energy savings.
Using digital dimming, Thorn’s Cruz luminaires take
measurements from sensors in the ceiling to establish the
task illuminance at desk or floor level and compare it to
the required lighting level. If there is too much light -
when the lamps are new, for instance - the luminaires
dim to save energy. As the lamps age, the dimming
reduces to keep the task illuminance correct.
Sensors built in to the Jupiter and Indiquattro
luminaires sense the change in daylight in the space,
and let the luminaires dim to save energy whenever
there is sufficient daylight. Intelligent software ensures
the lights do not react to short-term changes, such as
the sun drifting behind a cloud for a few seconds.
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Station Plaza
,
Hastings
Forth Valley Royal
Hospital,
Larbert
Westex Carpets
,
Yorkshire
Presence/Absence
Providing light only when
it’s needed
Constant Illuminance
Making sure light levels
remain correct throughout the
maintenance period
Daylight
Reducing waste light during
daylight hours
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English Institute of Sport
,
Sheffield
Centre Retail Park,
Oldham
Task/Scene setting
Letting the user set scenes and
adapt the lighting to different tasks
Using Thorn’s Titus Sport fitting in combination
with switching, the correct lighting level can be
chosen for a range of court uses, including
netball, basketball, badminton, football
and volleyball.
Timed off
Automatically turning all lights
off during unoccupied hours
Indra’s Bi power controls let the light level reduce
automatically when the amount of traffic falls late
at night. The luminaires still provide enough light to
navigate safely through the space, but save energy
by lowering their output.
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