What are LED lights? And an introduction to the characteristics of LED lights.

With the development of science and technology, LED lights have gradually penetrated into all aspects of people’s lives, but some friends do not know much about them. What are LED lights? Let’s find out together below.

what is led light

LED is the abbreviation of English lightemitting diode. Its basic structure is a piece of electroluminescent semiconductor material, which is solidified on the bracket with silver glue or white glue, then welded with silver wire, and then surrounded by epoxy resin. Sealing plays a role in protecting the internal core wire, so the LED has good shock resistance.

Characteristics of LED light sources

1. Voltage: LED uses low voltage power supply,

The power supply voltage is between 6-24V, depending on the product, so it is a safer power supply than using a high-voltage power supply, especially suitable for public places.
2. Efficiency: Energy consumption is reduced by 80% compared to incandescent lamps with the same light efficiency.

3. Applicability: It is very small. Each unit LED chip is 3-5mm square, so it can be prepared into devices of various shapes and is suitable for volatile environments.

4. Stability: 100,000 hours, light decay is 50% of the initial value

5. Response time: The response time of incandescent lamps is milliseconds, and the response time of LED lamps is nanoseconds.

6. Environmental pollution: no harmful metal mercury

7. Color: The color can be changed by changing the current. The light-emitting diode can easily adjust the energy band structure and band gap of the material through chemical modification methods to achieve multi-color light emission of red, yellow, green, blue and orange. For example, an LED that is red when the current is small can turn into orange, yellow, and finally green as the current increases.

8. Price: LEDs are relatively expensive. Compared with incandescent lamps, the price of several LEDs can be equivalent to the price of one incandescent lamp. Usually, each set of signal lights needs to be composed of 300 to 500 diodes.