sparks
ELECTRICAL NEWS
april
2013
26
lighting
AURORA’s ground-breaking CrystalCool
lamps use nanotechnology to produce a
smaller, lighter andmore efficient
light source.
Dan King, Aurora’s head of engineer-
ing explains:“LEDs generate significant
amounts of heat in order to produce
light. To date, accepted technology
reduces heat via a large thermal heat-
sink, which cools the lamp tomaintain
thermal management.”
He says that, to increase lumen
Nonotechnology produces smaller, lighter and more efficient light sources
performance from the same size of lamp,
either more LEDs or larger LEDs are
required, which results in an even
larger heatsink.
“Now, Aurora has developed a new
solution called CrystalCool™, which uses
nanocrystals to transform the heat re-
leased by an LED into infra-red radiation.
“For a cooler operating temperature,
the crystals rapidly and efficiently dis-
sipate heat away from the light source,
cooling the lamp from a hot 95°C to a
comparatively cool 70°C.
CrystalCool’s effective thermal
management delivers additional lumen
performance from the same physical size
lamp and it’s possible to reduce the heat
sink by 50%, too,”he says.
“As a result, CrystalCool lamps are
more efficient, both in energy-usage
and cost; and lamps of similar lumen
performance can now be packaged into
a smaller size.”
How is all this achieved?
“Instead of using an aluminium
substrate, the CrystalCool lamps use a
specially designed, ceramic substrate
that conducts heat away from the LED
chip,”explains King.
“The CrystalCool range of lamps and
luminaires provides solutions for do-
mestic and commercial applications and
includes direct replacements for high
performance MR16, GU10 and PAR16
halogen lamps.”
He says the PAR16 8.5W LED offers an
impressive 500 lumens with an efficacy
of 58 lumens/W.
“CrystalCool lamps are fully dimmable
and have a high colour rendering index
(CRI) of 80, combined with a three-year
guarantee and an average lifespan of 40
000 hours to 70% lumenmaintenance.
“They are the optimum solution for
enclosed or semi-enclosed luminaires
where best-possible thermal manage-
ment is crucial.”
For larger installations where an alter-
native to conventional compact fluores-
cent downlights is desirable, King says
that Aurora’s CrystalCool LED downlight
is available at 13W, 19Wor 32W.
The shallow fitting allows installa-
tion into ceilings that have a reduced
void depth or those filled with other
mechanical and electrical services.
All products carry a three-year
guarantee and an average lifespan of
40 000 hours.
“They still deliver a lumenmainte-
nance of at least 70% light output after
the guarantee period.
“CrystalCool’s evolution in thermal
management has been recognised
by over 65 international patents and
applications covering LED packaging,
manufacturing processes, radiativenano-
film and infrared ceramic heat dissipa-
tionmethods,”concludes King.
Enquiries: (011) 234-4878
MAGNET, a specialist in the supply, imple-
mentation and support of electrical equip-
ment and industrial instrumentation, has
appointed Gary Dawson as sales manager,
exterior lighting division.
Gary, with over 10 years’experience in the
lighting sector, has joined Magnet and part-
ner company Energywise Lighting Systems to
run the Magnet/Energywise exterior lighting
division. His areas of focus are to generate
sales for a range of street and outdoor light-
ing fixtures and to aid in the development of
a new range of Magnet/Energywise-branded
lighting fixtures.
Gary’s previous key projects include light-
ing design for the Sugar Ray Xulu Stadium
in Cleremont and the SANRAL Mariannhill
Toll Plaza.
Enquiries: (031) 274-1096
Gary Dawson.
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