Explanation
A Light Emitting Diode (LED) A light-emitting diode is a semiconductor device that emits light when current flows through it LED lighting products produce light up to 90 % *** Invented : H. J. Round (1907); Oleg Losev (1927); James R. Biard (1961); Nick Holonyak (1962) *** First production : October 1962 **************** VU FIA CBT 14-12-2021 ND5-5-2023
