LED光源作为新一代光源，与白炽灯、高压钠灯等传统的热辐射、气体放电光源有很大不同。目前的LED光源在照明方面具有以下优点：

(1) 体积小

LED光源与传统光源相比，体积小、重量轻，可制成各种形状的器件，便于各种灯具和设备的布置设计，适应性强，应用范围广.

(2) 良好的环保性能

由于LED光源在生产过程中不需要添加金属汞，所以LED废弃后不会造成汞污染，而且几乎所有的废弃物都可以回收利用，既节约了资源，又保护了环境.

(3) 安全稳定

LED光源可采用低压直流驱动，一般供电电压在6~24V之间，安全性能较好，特别适用于公共场所。此外，在良好的外部环境条件下，LED光源比传统光源具有更小的光衰和更长的寿命，即使频繁开关也不会影响其使用寿命。

(4) 良好的抗震和抗冲击性

The basic structure of the LED light source is a piece of electroluminescent semiconductor material, which is placed on a leaded shelf, and then sealed with epoxy resin around it. There is no glass casing in the structure, and it does not need to be in the lamp tube like incandescent or fluorescent lamps. Vacuum or flush specific gases. Therefore, the anti-seismic and anti-shock performance of the LED light source is good, which brings convenience to its production, transportation and use.

(5) Strong directivity

Compared with the traditional light source, the light emitted by the LED light source is directional, most of the light emitted from the LED can be directed to the illuminated surface, and the utilization rate is much higher than that of the traditional light source.

(6) Fast response time

The response time of incandescent lamps is in milliseconds, and the response time of LED light sources is in nanoseconds. Therefore, it is widely used in the field of traffic signals and car lights.

(7) High luminous efficiency

With the development of LED lighting technology, the luminous efficiency of LED light source has been increased from less than 10lm/W to more than 100lm/W, and its luminous efficiency still has the potential to be greatly improved.

(8) Rich light and color

The LED light source can realize the luminescence and discoloration of various colors in the visible light band by changing the current, chemical modification, monochromatic light mixing, etc. Even for white LEDs, it can be made into a light source with various color temperatures. Therefore, it has obvious advantages in interior decoration lighting and landscape lighting.

(9) No flicker, no UV light

The LED light source uses DC power supply, the light is stable and does not flicker, and the spectrum is mainly concentrated in the visible light region, and there is basically no interference from ultraviolet or infrared radiation, which can avoid the adverse effects of the stroboscopic effect and improve the comfort of the human eye.

(10) Good brightness adjustability

根据LED光源的发光原理，LED的发光亮度或输出光通量基本随电流正向变化。其工作电流在额定范围内可大可小，具有良好的可调性，为LED光源实现按需照明和亮度无级控制奠定了基础。

正是由于LED光源具有上述传统光源无法比拟的优势，LED光源才成为各国照明产业发展的重点和方向。传统光源。