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.