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Philips LED's most energy-efficient A-class bulbs | Signify Company Website
Peerless Electronics Inc. - In October 1962, the first light-emitting diode (LED) was invented by scientist and employee of General Electric, Nick Holonyak by the working principle of Electroluminescence. EL (electroluminescence) is
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Cree Introduces an LED Bulb Edison Would Love | MIT Technology Review
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