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ADVANTA6ES OF J.£D, • LED arc small in s ize and light ,vcight. Therefore it is possible to, pack large number of LED in a small space \vhilc manufacturing a, display., • They arc available in d ifferent spectral colours., • T hey have longer life as con1parcd to the lamp., • The light emi tted by an LED is proportional to the runount of, current no\v ing through it. Hence ,ve can control tbc cun·cnt, nowing through LED to vary the ir brightness as per the, requirement of the application ., • The switching speed of LED is high less than Ins . So it is suitable, at high operating speed applications.

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APPLICATIONS OF 1,£0, •, •, •, •, •, •, , LED is used as a bulb in the ho mes and industries, The LED a rc used in mo to rcycles and cars, These are used in mobi le pho nes to display the m essage, At the tra ffi c light signals LED 's are used., LED used in dig ital \Vatches. •, LED used in auto motive hea l lamps, , • LED used in Camera nashes., • LED used in seven scg,ncnt a nd a lphanumeric displays.