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Low Pressure Sodium (SOX) lamps are generally
employed in street lighting applications,
primarily because they are efficient light
sources, consuming less energy as compared to
other lamp types. They also have a high
efficacy. The principal reason for the high
efficacy is because the colour of the light is
close to the maximum sensitivity of the human
eye in normal viewing conditions
Low Pressure
Sodium light has a number of very unique
properties arising from this spectral output,
many of which make it technically the most
suitable light source for road lighting. In
addition, the large physical size of the lamp
means that it has a low luminance so it is less
likely to give rise to glare, and the low
operating temperature permits the use of compact
optical systems and lightweight plastic lanterns
Furthermore, the
lamp itself is relatively inexpensive and can be
operated on low cost electrical control gear Of
increasing significance is the fact that it
contains zero mercury, and can be easily
disposed of as non-toxic waste without incurring
extra expense at its end of life. Most high
pressure sodium and all other light sources
employed in street lighting contain poisonous
mercury and special restrictions apply to the
disposal of used lamps.
We design,
manufacture, supply and install solar street
light systems that employ Low Pressure Sodium
lamps. Our systems are both single and double
arm comprising of lamps, electronic ballasts,
solar panels, controllers, batteries and boxes,
poles and other accessories. |
