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LED street lights purchase points

Views: 0     Author: Site Editor     Publish Time: 2020-12-31      Origin: Site


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LED street lights purchase points

Luminous efficiency

Technology is becoming more and more mature, and high-power LED light sources can already meet the needs of general street lights. The luminous efficiency of the general high-pressure sodium lamp is 100LM/W, the commonly used high-power LED is 50-60LM/W, and the best Led chip abroad can reach 80LM/W. The higher the luminous efficiency, the better the energy-saving effect. It is also one of the most important indicators for choosing LED street lights. However, there is no clear stipulation in the LED standard, so you must carefully confirm when purchasing LED street lights. LED street light manufacturer

Light decay

In order to reduce costs, some LED street lamp manufacturers use hundreds of low-power LEDs of 0.5W. 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 long-term use, it is excellent and cannot allow the use of such low-power LEDs. Using high-power LEDs (generally more than 30W) will have much better light decay.


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 requirements for corresponding supporting materials are higher. 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 lamp holder to more than 10 kg, and the weight reduction has a further downward trend.

Heat dissipation

Because the LEDs of LED street lamp manufacturers are semiconductor components when the chip is affected by temperature and reduces to 30% of the initial luminous flux, it will lose the meaning of lighting, that is, the end of life. Theoretically, the life of high-power LED street lights is 3- 50,000 hours, but its important prerequisite is good heat dissipation. It is worth mentioning that domestic manufacturers have adopted the world’s superior needle-shaped heat dissipation technology,

Zehai lighting will help you to select the right light.

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