What is the definition of LED light? What are the applications?

LED is also called light emitting diode. Its basic structure is electroluminescent semiconductor material, which is a solid-state semiconductor device and can directly convert electricity into light. Put it on a shelf with leads, and then seal it with epoxy resin to protect the internal core wire, so that the LED has good seismic performance. The heart of LED is a semiconductor chip, one end of which is attached to the bracket, one end is the negative electrode, and the other end is connected to the positive electrode of power supply, so that the whole chip is encapsulated by epoxy resin. Led fluorescent lamps are characterized by high quality, durability and energy saving, and the projection angle can be adjusted in a wide range. The brightness of 15W is equivalent to that of ordinary 40W fluorescent lamps. Resistant to high temperature, moisture, water and leakage. The working voltage is 1 10V and 220V, and the cover can be glass or PC. Lamp holders are the same as ordinary fluorescent lamps. LED fluorescent lamp adopts the latest LED light source technology and digital appearance design, saving electricity by more than 70%.

The light intensity of 12W LED fluorescent lamp is equivalent to that of 40W fluorescent lamp (for ballast and upconverter, the actual power consumption of 36W fluorescent lamp is 42W to 44W). The life of LED fluorescent lamp is more than 10 times that of ordinary lamp, and it is almost maintenance-free, so it is not necessary to change the lamp, ballast and frequency converter frequently. Environment-friendly semiconductor electric light source has soft light and pure spectrum, which is beneficial to users' vision protection and health. The cold light source of 6000K gives people a cool feeling visually, and the humanized illumination difference design is more helpful to concentrate and improve efficiency. Car signal lamp is also an important field of LED light source application. 1987, China began to install high-position brake lights on cars. Because of the fast response speed of LED (nanosecond level), the driver behind the car can know the driving situation as soon as possible and reduce the occurrence of rear-end collision. In addition, LED lights have been used in outdoor red, green and blue full-color display screens, keychain miniature flashlights and other fields.