How Many Watts Of Light Source Does LED Street Light Use Normally?

LED street lights are now seen more and more on the road, the main reason is because it is green, low-carbon and environmentally friendly, low power consumption, high luminous efficiency and long service life. So now the upgrade of municipal roads and street lights will first consider LED street lights. Let us introduce the characteristics of LED street lights.

1. Luminous efficiency

As technology advances in LED technology becomes more mature, high-power LED light source is required to meet the general street. The luminous efficiency 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. It is also one of the most important indicators for choosing LED street lights. However, the LED standard does not clearly stipulate this, so you must carefully confirm when purchasing LED street lights.

2. Light decay

In order to reduce manufacturing costs, some street lamp manufacturers only use a few 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.