LED technology offers several advantages over other lighting options.

1)Low light pollution – LEDs produce directional light. Almost all of the light from these street lights is directed downwards, reducing light pollution. Light pollution is an enemy of astronomers. Even with special filter binoculars to cut off ambient light, it is difficult to observe the sky. Light pollution and minor intrusions can also affect human emotions, the navigation of birds and insects, the mating behavior of animals and the flowering of plants.Directional lamps also increase efficiency because 20-50% of the wasted light is now used to illuminate the road.

 2) Energy efficiency – LED lamps are 7 times more energy efficient than incandescent lamps and 2 times more efficient than fluorescent lamps. Only high-end HPS lamps are more energy efficient than LED bulbs. From cradle to serious research, LEDs may be more cost effective if they affect the environmental impact of HPS lamp production and transportation. In addition, LEDs are increasingly efficient.

3) Intelligent Lighting Control – Intelligent systems use computers to optimize lighting. Light can be dimmed or turned off during low flow periods, selectively illuminating a single light or group of lights as traffic approaches, and reducing light intensity during dusk. It is also possible to selectively change the color of the light to ensure optimal visibility under different conditions. For example, at night, the reddish glow of the sky may make it difficult to observe things. Light sources that emit blue light at night will complement the reddish natural light and help improve visibility. LED lighting systems can meet all of these needs.

4) Excellent color rendering index – HPS lamps may produce more original lumens, but because they mainly produce yellow light, the contrast is poor and the visibility is poor. Fewer, well-oriented lumens from LED lamps can accomplish the work of larger HPS lamps.

5)Low carbon footprint for manufacturing – LEDs are made of plastic and wire – Other options usually have heavy metal substrates that use more energy to make. In addition, LEDs last 4 to 10 times longer than any other bulb, further reducing the carbon footprint of the manufacturing process.

 6)Low replacement cost – The cost of LED lights and traditional light bulbs is not comparable. When HPS only needs $9 million, a good LED lighting device can cost $20 million to implement. The cost of replacement costs and HPS costs increased to nearly $45 million. Clearly, LEDs are a more cost effective option.

The many advantages of LED street lights make them popular. The availability of DOE funds has driven investment in energy-saving lamps. Ann Arbor (carbon dioxide emission reduction 1000 lamps equivalent to 2445 tons, investment payback period of 3.8 years), Seattle (its utility utilities lead the wave of energy-saving lighting equipment testing), New York, Los Angeles (140,000 street lights will be converted to LED systems) Pittsburgh (40,000 lamps), Düsseldorf, Germany, and Ontario, Canada, are shining examples of how LED technology can start from the small lights in the dashboard and continue to help develop thinner, brighter, Less power-hungry computer monitors are turning energy usage patterns into more mainstream uses.