There are more than one hundred and forty thousand street lamps along the roads of Hong Kong, which are under regular maintenance to ensure their reliable operation
(https://www.hyd.gov.hk/en/district_and_maintenance/lighting/index.html)
This is addition to other public lighting which includes pedestrian walkways, cycle path lighting, underpass lighting, high-mast lighting, public transport interchanges and footbridge lighting. Up until recently these were all predominately high pressure sodium lamps (HPS), ceramic metal halide discharge lamps (CDM), or high efficiency fluorescent lamps.
In 2017 the Highways Department (HyD) launched the LED public lighting replacement programme to save energy and reduce emissions, providing the public with more safe, reliable, sustainable lighting services.
How is LED lighting an improvement over traditional lamps?
Long Service Life: 50,000 to 100,000 hours (equivalent service period of approximately
5.5 to 11 years)
Environmentally Friendly: Mercury Free
Durable: free of wire filament or gas filled bulbs
Energy Saving: approximately 30% reduction compared to traditional street lighting
Colour Rendering: much higher colour reproduction
for accurate visibility
Versatile: LEDs are dimmable, instant start, and
can adapt to a wider range of applications.
Are Solar LED Panels the next stage in the evolution of lighting?
The electricity grid as we know it was largely a consequence of how best to provide street lighting. The integration of solar LED panels into this infrastructure has created a rift. No longer are street and area lights dependent on the existing electricity grid, solar LED panels can now generate their own electricity, making them independent of the very resource they helped to build.
on fossil fuels, lowering their carbon footprint and creating more human centric sustainable cities for future generations.