What is LED? - Definition, Working, Properties, Uses, Advantages
What is LED? - Definition, Working, Properties, Uses, Advantages
Light Emitting Diode (LED): What is it & How Does it Work? | Electrical4U
Light Emitting Diode : Construction, Circuit, Working & Its Applications
Light Emitting Diode & OLED
Light Emitting Diodes: Principle, Construction, Working, Advantages and Disadvantages
The Nobel Prize on Twitter: "The principle for light-emitting diodes LED (upper left) and an example of a blue LED lamp. #nobelprize2014 #Physics http://t.co/cxzXyP7zoj" / Twitter