In urban landscape lighting, LED lights are very common. Let Green Source Lighting share with you the knowledge of LED.

The application of LED light sources in the field of lighting is a product of the rapid development of semiconductor luminescent material technology and the gradual penetration of the concept of "green lighting" into people's hearts. "Green lighting" is a new concept proposed in the field of lighting abroad in the late 1980s, and the implementation of "green lighting engineering" in China began in 1996. The important step in implementing this plan is to develop and promote energy-saving lighting fixtures, save lighting electricity, reduce environmental and light pollution, and establish an economical, comfortable, reliable, and environmentally friendly lighting system.

In recent years, the luminous efficiency of LEDs has been gradually improving, and commercialized devices have reached the level of incandescent lamps. The luminous efficiency of white LEDs used in landscape lamps is close to that of fluorescent lamps and is steadily increasing. However, there are still some technical issues in the popularization and application of lighting?

1. The luminous flux needs to be further improved. Using LED as a lighting source must be able to emit more light and have higher energy efficiency.

2. There is still a certain gap between the light emitted by LEDs and natural light. Incandescent lamps have a very strong yellow light component, giving people a warm feeling. The white light emitted by white LED contains blue light components, and under this type of lighting, people's vision is not very natural.

3. The price is relatively high. This is the main reason that affects the popularity of LED lighting. However, in recent years, due to improvements in chip technology, manufacturing costs have been sharply decreasing. In the past three years, the price of LED has decreased by nearly 50%, and it is developing towards high efficiency and low cost. This provides favorable conditions for the application of LED in the lighting field. In addition, a better cost-effectiveness can also compensate for the shortcomings in terms of cost and price.