Write any one advantage of light emiting diode.

Explain, with the help of a schematic diagram, the principle and working of a Light Emiting Diode. What criterion is kept in mind while choosing the semiconductor material for such a device ? Write any two advantages of light emiting diode over conventional incandescent lamps.

Write any two advantages of Light Emitting Diode (LED) over conventional incandescent low power lamps .

A light emitting diode is

Write advantages of light emitting diode over incandescent lamps

Light Emitting Diode