What is an led light?

LED (LightEmittingDiode), whose Chinese name is Light Emitting Diode, is a semiconductor device, which can convert electric energy into light energy and has the advantages of high efficiency, environmental protection and long service life. The working principle of LED lamp is to inject electrons and holes into PN junction. When electrons and holes recombine, they will release energy, which is light energy. LED lamps are widely used in lighting, display, signal indication and other fields. This is a very important light source.

Advantages of LED lamp

Compared with traditional light sources, LED lamps have many advantages, the most notable of which are high efficiency, environmental protection and long life. The light efficiency of LED lamps can reach 80- 100lm/W, which is 3-5 times higher than that of traditional incandescent lamps and 1-2 times higher than that of fluorescent lamps. The environmental protection performance of LED lamp is also very good, and it does not contain harmful substances such as mercury and lead, and does not produce ultraviolet and infrared radiation, which is harmless to human body and environment. The life of LED lamps is also very long, which can reach more than 50,000 hours, much longer than traditional incandescent lamps and fluorescent lamps.

Application of LED lamp

With the continuous development of science and technology, the application scope of LED lamps is more and more extensive. LED lamps can be used in lighting, display, signal indication and other fields. In the field of lighting, LED lamps can be used for home lighting, commercial lighting, road lighting and so on. Its characteristics of high efficiency, environmental protection and long life are widely recognized. In the field of display, LED lamp can be used in TV, computer, mobile phone and other display screens, and its high brightness, high contrast and high color reproduction make the display effect clearer and brighter. In the field of signal indication, LED lights can be used as traffic lights, warning lights, display screens and so on. It has high brightness and long service life, and is more suitable for outdoor environment.

How to use LED lights

Using LED lights is very simple, just follow the following steps:

1. Select appropriate LED lamps, and select LED lamps with different powers and colors as required;

2. Connect the LED lamp and connect the LED lamp to the power supply;

3. Control the LED lamp, and control the brightness, color and other characteristics of the LED lamp by controlling parameters such as current and voltage.