LED光源有哪些优点？

As a light-emitting device, led attracts people's attention because of its advantages over other light-emitting devices

(1) Long working life: as a kind of conductor solid light emitting device, LED has longer working life than other light emitting devices. The half-life of brightness can reach 100000 hours. If the traditional automobile lamp is replaced by LED, its life will be much longer than that of the automobile body, and it has the characteristics of no need to repair and replace for life.

(2) Low power consumption: LED is a low-voltage device, so in the same brightness, the minimum power consumption, can greatly reduce energy consumption. On the contrary, with the development of technology and materials in the future, it will have higher luminous efficiency. It has been calculated that if all the lighting lamps in Japan are replaced by LED, two large power plants will be reduced, which is very beneficial to environmental protection.

(3) Fast response time: LED generally can respond in tens of milliseconds (NS), so it is a kind of tell device, which is beyond other light sources. Using led to make the high brake lamp of the car, the safety of the car is greatly improved at high speed.

(4) Small size, light weight and resistance to impact are the inherent characteristics of solid-state semiconductor devices. Color LED can make all kinds of clear and delicate display devices.

(5) Easy dimming, color matching, controllable: as a light-emitting device, LED can control the brightness through the change of current, and also realize the change and adjustment of color through the configuration of different wavelengths of LED. Therefore, the light source or display screen composed of LED is easy to meet the needs of various applications through electronic control, and it is extremely difficult to be compatible with IC computer. In addition, the application of LED light source is not limited by scenting in principle. It has strong plasticity and can be extended arbitrarily to realize building block assembly. At present, the color display of large screen is led.

(6) The light source made of LED has no environmental pollutants such as mercury and lead, and will not pollute the environment. Therefore, people call led light source "green" light source is worthy of.