High-power LED street lamp is an alternative product of high-pressure sodium lamp, which has the following advantages:

　　 1. One-way lightness

　　Characteristics of the LED street light pole itself --- unidirectional light, no diffusion of light, to ensure lighting efficiency.

　　 Second, high light efficiency

　　LED street lights have a unique secondary optical design, which illuminates the light of the LED street lights to the required lighting area, which further improves the lighting efficiency. Has achieved energy-saving purposes. At present, the LED light source efficiency has reached 100lm/w, and there is still much room for development, the theoretical value reaches 200lm/w. The luminous efficiency of high-pressure sodium lamps increases only with the increase of power. Therefore, the overall light efficiency of LED street lamps is stronger than that of high-pressure sodium lamps.

　　 3. High light color rendering

The color rendering of LED street lamps is much higher than that of high-pressure sodium lamps. The color rendering index of high-pressure sodium lamps is only about 23, and the color rendering index of LED street lamps reaches more than 70. From the perspective of visual psychology, the brightness of LED street lamps can reach the same brightness. Sodium lamps have been reduced (refer to British road lighting standards.)

　　 Fourth, the light attenuation is small

LED street lamps have low light decay, less than 3% in one year, and still meet the road lighting requirements in use years, while high-pressure sodium lamps have decay, which has dropped by more than 30% in about one year, so the design of LED street lamps is using power It can be lower than the high pressure sodium lamp.

　　 Fifth, energy saving

　　LED street lights have automatic control energy-saving devices, which can achieve a greater possibility of reducing power and saving electricity when meeting the lighting requirements of different periods.

　　It is relatively safe to use. LED is a low-voltage device, the voltage for driving a single LED is a safe voltage, and the single power of the series products is 1 watt, so it is a safer power supply than the use of high-voltage power supply, especially suitable for public places (such as: street lighting, Factory lighting, automobile lighting, civil lighting, etc.).

　　 Six, easy to maintain

　　Each unit LED chip has only a small volume, so it can be prepared into various shapes of devices, and is suitable for a variable environment.

　　Integrating the above principles, the energy-saving effect of high-power LED street lamps is remarkable, and it can save 60% of electricity by replacing high-pressure sodium lamps. Although high-power LED street lamps have many advantages, it is currently difficult to replace high-pressure sodium lamps on a large scale. The main reason is that the quality of LED street lamps is not stable enough and the cost is too high. Despite this, LED street lamps have the advantages of energy saving, long theoretical life, and environmental protection lamps. Today, they promote green and environmental protection in the world. They are very dazzling, and have been highly valued and strongly supported by the government and industry.