EXPLAIN WHITE LEDS AND ITS IMPORTANCE TODAY LEDs are not that weak like ordinary conventional bulbs as they don’t have filament to burn out or break. They also have an advantage of getting on instantly like halogen lamps and therefore they can be used in applications like frequent-on off cycling. They are more fragile and hard to heat up soon. There is a rapid development in LED technology and it is guaranteed that it will outnumber the HID lighting.
LED- a source of light Light emitting diode is considered as the source of light for using diodes that emit light when the circuit is connected to it. A large number of photons is released by the LED and the effect is called as electro luminescence. A semiconductor chip located in the center of the light source is an important part of the LED. P and N regions are the regions in it with a junction between them. Positive electric charge dominates the P region and the negative electric charge dominates the N region. A block between the two region is called a junction which blocks the passage of carriers between the two regions.