Saturday, February 5, 2011

Comparison Matrix Between LED versus HPSV Street Light

 

Item60 w LED Street Light150w HPSV Street light
Cost of electricity (KWh)88
Operations in hrs(1 day)1010
Operations in days(1 year)365365
Annual KWh219547.5
Annual Cost of Electricity17524380
Lifetime30000 hrs/3000 days6000 hrs/600 days
Comparative Cost210004500
Total Cost of Ownership over LED lifetime keeping cost of electricity same3540049500

Over All 40% cost saving in LED street Light
 
Salient features of LED lighting
 
  1. High energy efficiency & savings- High power factor> .95
  2. Safe light- no UV or IR in the beam
  3. Low heat dissipation/sink
  4. Vibration resistance- no filament to break.
  5. Instant on - reaches full brightness in nanoseconds.
  6. Long lifespan- 30000- 100000 hrs.
  7. Low -temperature friendly-no issue starting in cold temperature.
  8. Excellent colour rendering
  9. High Brightness- no compromise between efficacy and CRI.
  10. Option of colours
  11. Eco friendly green products-contains no mercury, lead or other heavy metals.
  12. No maintenance cost.
  13. Directional - no wasted light; any pattern possible.

Monday, January 17, 2011

LED Lighting

The use of LED, an acronym for Light Emitting Diode, has greatly spread in the last few years within many diverse fields of application, from traffic lights to infrared TV controls. The increasing use of LED within industry is primarily due to technological progresses, which have permitted LED to be produced in colours other than the original red (which in the beginning was the only colour available), as well as the  fundamental characteristics which LED can boast: being trustworthy, highly efficient and with a long-life span. 
LED today also plays an ever increasing role in the field of technical lighting, as LED lighting systems offer various advantages in respect to traditional sources of illumination:
  • long life
  • no maintenance costs
  • greater efficiency in contrast to halogen and florescent lights
  • secure operation
  • a clean light as it is without IR and UV components
  • easy of installing light points
  • absence of mercury
  • the possibility of a strong spotlight effect
  • no problems switching on
  • insensitivity to humidity and vibrations
  • ease of achieving efficient and effective optics in plastic or glass
LED illuminations have the following characteristics:
  • small
  • dynamic effects (variations of the RGB colours)
  • cost effective shape and size
  • long life and robust
  • concentrated colours
led lightingDue to the characteristics of LED and of the LED lighting systems, light is increasing its value in its ability to create diverse ambiances both publically and privately: such as in the illumination of museums, restaurants, health centres, bars, road signs, safe routes as well as becoming increasingly useful in the naval sector.
The versatility of LED lighting systems make this form of technical lighting particularly adapted to scenography and set design as well as creating original and personalised spaces. Monochrome or multi-colour LED systems perfectly integrate with buildings and their surroundings, becoming an integral part of the design, offering solutions for internal space as well as external spaces, whether in humid environments or very hot atmospheres.
Choosing an LED lighting system brings with it numerous economic advantages in terms of lower costs; the possibility to achieve four times as much light in respect to tungsten flurescent and filament lamps; the increased effeciency and reliability of led is also highlighted in its life span, which is one to two times greater than that of cl;assic lighting sources. 
The Geospec technical team produces and sells a wide range of led lighting systems, which include:
  • LED light fittings
  • LED lighting profiles
  • LED devices
  • LED spotlights
  • Path lamps
  • LED spotlights for swimming pools
  • LED spotlights for gardens and small paths
  • Spotlights for light fittings and/or lighting for stairways and steps
  • Monocrome SMD LED stips
  • SMD RGB Led strips
  • Internal and external Wall Washers
  • Supplies
  • Colours for RGB spotlights