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“Smart lighting devices can save Rs 4.7 lakh cr annually” [Apr 2012]

According to a recent study by the Associated Chambers of Commerce and Industry of India (ASSOCHAM), widespread use of new and efficient lighting devices can save nearly 35,000 MW of power and the country can gain Rs 4.7 lakh crore.
The devices include light emitting diodes (LEDs) and compact fluorescent lamps (CFLs). Implementation of this lighting efficiency option will cost about Rs 50,000 crore, said the study.
LEDs have typical efficiencies of 110 lumen per watt and an operating life of 50,000 to 80,000 burning hours as compared to a pitiable 5 to 20 lumen per watt and life of only 1,000 burning hours for the commonly-used incandescent bulb, said the ASSOCHAM study titled ‘Encashing Lighting Energy Efficiencies – A National Strategy Document.’
Though relatively expensive at present, LEDs are basically solid state devices that convert electric energy directly into light of a single colour.

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