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Tuesday, September 20, 2005

What are LED's ?

Light emitting diodes are semiconductor devices that have been around for decades. The last 5 years has seen dramatic increase in the amount of light the led's put out and hence have entered the world of general lighting with a twinkle. There are already led's available widely in the Indian market that emmit 9600 mcd ! These led's go into arrays that are widely being used to replace focus lamps as well as general lighting lamps. And for the rural market these devices are manna from heaven. A small rural houshold can be lit up very effiectively using a small solar panel coupled with led based luminares for about Rs 7000. And this is an investment that will pay off for 10 years which is the rating of the lamps ! The dream to light up homes in india economically, ecologically and reliably is finally being realized with the potent combination of renewable solar energy and LED lighting.

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