Introduction of Luminous Efficiency of LED Public Lighting
Luminous efficiency is a parameter of the led light source, which is the ratio of luminous flux to power. The higher luminous efficiency means the better energy-saving effect, which is also one of the most important indicators for selecting Led Public lighting. There is no clear stipulation in the standard of LED. With the maturity of LED lighting technology, high-power LED light sources can meet the needs of ordinary street lamps.After a period of lighting, the light intensity of LED will be lower than the original light intensity, and the lower part is the light attenuation of LED public lighting. However, in order to reduce costs, some unscrupulous merchants have adopted hundreds of 0.5W low-power LEDs. The light attenuation of low-power LED is very serious. It's light attenuation to 80% is only 1,000 hours. It is absolutely not allowed to use this kind of low-power LED for street lamps that need long-term use. The light attenuation is much better when high-power LED (generally above 30W) is selected. Heat dissipation is also a factor to reduce light attenuation, and the light attenuation of LED public lighting with good heat dissipation will also be reduced.When purchasing LED public lighting, products should be selected according to product parameters and actual usage. In addition to luminous efficiency and light attenuation, there are also factors such as product self-weight and price, which also need to be compared in many aspects to select the most suitable street lamp.