Definition of light-emitting diode

A light-emitting diode is a semiconductor that gives it some voltage and emits a bright light. Its light is produced in a manner similar to fluorescent lamps and gas discharge lamps. LED has no filament, and its light is not heated by the filament, that is, it does not pass through the two ends to let the current pass. The LED emits electromagnetic waves (a very high frequency of vibration). When these waves reach above 380 nm (nanometer) and below 780 nm, the wavelength in the middle is visible light, a visible light that can be seen by human eyes. LED is a very useful and efficient light source. Its optical structure has been assembled with little loss of light. It is projected through a narrow structure. Its color is based on the semiconductor components it uses. There are about red, yellow, green and white light and so on.

We first experienced that LEDs are used as indicators on the sound, and then used in the car's dashboard lights, indicator lights and audio panels, etc., and then to the direction lights, indoor lights, will soon be applied to the headlights on the illuminated road . The technology used in the directional lights has been rapidly developed, and the current HELLA New Zealand plant is a pioneer in the development and production of LED directional lights. They have successfully mass-produced and sold such products, and published catalogues of related products. HELLA New Zealand Plant (HNZ) is a leader in this field. In the near future, the Australian automotive industry will use LED technology on their vehicles under the guidance of HNZ. At the same time, a HNZ technician named ELMAR DVENSCHEDEHDE has successfully developed the LED directional light technology adopted by Germany.

At present, the price of LED is still very high, especially for high brightness or special color, but with the increase of demand and continuous research and development, the cost will decrease.
The advantages of LEDs in the vehicle industry are:
Small in size;
2. It can use the various light sources emitted, it is the most efficient;
3. Fast response (lighting fast);
4. Consistent and stable color;
5. Mechanical structure is stable;
6. Long life (at least 10,000 hours or more)