Comprehensive comparison of performance and price, how to choose LED street lights correctly?

Led street lights are the best choice for energy-saving transformation of road lighting at present. How should I buy LED street lights? What are the shopping points? From 4 o'clock, I will give you a brief introduction to the purchase instructions.

1. Luminous efficiency

LED lighting technology is becoming more and more mature, high-power LED light sources can already meet the luminous flux required by general street lights. The luminous flux of the general high-pressure sodium lamp is 100LM/W, and the commonly used high-power LED is 50-60LM/W. The best LED chip abroad can reach 80LM/W. The higher the luminous efficiency, the better the energy-saving effect. Choose one of the most important indicators of LED street lights. However, the LED standard does not clearly stipulate this, so you must carefully confirm when purchasing LED street lights.

2. The light decay of LED street lights

At present, some businesses, in order to reduce costs, thereby reducing the price of selling led street lights, they use several hundred 0.5W low-power LEDs. However, the light decay of this low-power LED is very serious, and its light decay to 80% has a life span of only 1000 hours. Therefore, as a street lamp that needs to be used for a long time, it is absolutely not allowed to use such low-power LEDs. If you choose high-power LEDs (generally more than 30W), the light decay will be much better.

3. The self-weight problem of LED street lights

Due to the high technical content and complex composition of LED street lamps, the weight of some high-power lamp holders will far exceed that of ordinary high-pressure sodium lamps, so the corresponding support materials are more demanding. However, some LED street lamp manufacturers have tried their best to reduce the self-weight of the LED lamp holder, from about 30 kg per single lamp holder to more than 10 kg, and the weight reduction has a further downward trend.

4. Heat dissipation of LED street lights

Because LED is a semiconductor component, when its chip is affected by temperature and reduces to 30% of the initial luminous flux, it will lose its illumination meaning, that is, the end of life. In theory, the life of high-power LED street lights is 30,000 to 50,000 Hours, but its important prerequisite is good heat dissipation. It is worth mentioning that the domestic LED street lamp manufacturers have adopted the world's leading needle-shaped heat dissipation technology.