In the ancient times queen used to keep “JUGANU” in their hair. The juganu is a small insect which emits light in the night. “LED” the light emitting diode, emits the light with very low power consumption as compared to incandesce lamp. The normal 100 Watt incandesce lamps give 1200 lm (Lumens) or 12lm/watt. The florescence lamp gives the light 25lm/watt. But the LED gives 100lm/watt, thus it is eight times more efficient than the incandesce lamp. Till date the researcher’s achieved a goal of 200lm/watt.
The led devices are made of number of clusters. These are found in various colors including day light color. It can be used in DC and AC. The average life of led is 40000 hours, 40 times the life of incandesce lamp. But the cost of this device is $2 to $3 per watt. Though the initial cost is high, yet it will be economical in long run by saving energy consumption. The cost of production is continuously decreasing, so that it will be reachable range to customers.
Monday, August 9, 2010
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Indeed very energy-efficient, forward.
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