Tšimoloho Lilemong tsa bo-1960, bo-rasaense ba ile ba hlahisa LED ho latela molao-motheo oa semiconductor PN junction. LED e hlahisitsoeng ka nako eo e ne e entsoe ka GaASP mme 'mala oa eona o khanyang o ne o le khubelu. Kamora lilemo tse ka bang 30 tsa nts'etsopele, re tloaelane haholo le LED, e ka ntšang bofubelu, lamunu, bosehla, botala, boputsoa ...
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