Key Points for Selecting LED Road Lights!
Road lighting is closely related to people's production and life. LED road lights gradually come into people's view as a new generation energy-saving light source with advantages such as directional emission, low power consumption, good driving characteristics, fast response speed, high seismic resistance, long service life, and environmental friendliness, which make it the primary choice for road lighting energy-saving transformation. How to choose suitable LED road lights? What are the key points to consider when selecting LED road lights? Let's take a look together.
The luminous efficiency of LED road lights
With the maturing of technology, high-power LED light sources can now meet the needs of general road lights. The luminous efficiency of a typical high-pressure sodium lamp is 100LM/W, and the commonly used high-power LED is 50-60LM/W. The use of foreign LED chips can reach 80LM/W. The higher the luminous efficiency, the better the energy-saving effect, which is also one of the important indicators for selecting LED road lights.
However, there is no clear provision in the LED standard for this, so it must be carefully confirmed when purchasing LED road lights.
Light decay of LED road lights
Some businesses use hundreds of small 0.5W low-power LED to reduce costs. However, the light decay of these small-power LEDs is very serious, and the light decay to 80% of their life is only 1000 hours. Therefore, as road lights that need to be used for a long time, small-power LED cannot be used, and it is necessary to choose high-power LED (generally 30W or more), whose light decay is much better.
The weight problem of LED road lights
Due to the high technical content and complex components of LED road lights, the weight of some high-power lamp heads can far exceed that of ordinary high-pressure sodium lamps, so the requirements for the corresponding supporting materials are higher.
However, some LED road light manufacturers have tried their best to reduce the weight of LED lamp heads, reducing the weight from about 30 kilograms per single lamp head to more than 10 kilograms, and the weight reduction trend is continuing.
Heat dissipation of LED road lights
LED is a semiconductor device, and its chip will lose its illumination significance when the initial light flux decreases by 30% due to temperature influence, which means the end of its service life. The theoretical service life of high-power LED road lights is 30,000-50,000 hours, but the important premise is good heat dissipation.
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