Road lighting fully cooperates with energy-saving and emission reduction warm white light "full horsepower"

In our country, with the economic growth and the increasingly tense resources, the pace of energy-saving projects and the use of energy-saving products is also accelerating. For example, from April 1 this year onwards, public building projects in Beijing with a building area of ​​20,000 square meters or more must undergo energy conservation review. Otherwise, they will not be approved or approved.

In China, public facilities have always been the “main battlefield” of energy-saving campaigns because of their large electricity consumption. Taking public lighting in cities as an example, it accounts for 30% of lighting power consumption in China, which is approximately 43.9 billion kWh. But saving energy and reducing greenhouse gas emissions do not mean reducing the quality of urban lighting. How to achieve energy saving and reduce greenhouse gas emissions while not "cheap", even in exchange for better urban lighting effects? The choice of street light electric light source is very important.

Warm white all-around champion

In the development of road lighting, there has always been competition between the "Yellow School" and the "White School." The representative of the "Yellow School" is now the mainstream high-pressure sodium lamp, because it is economical and energy saving, and at the same time it has excellent fogging performance, so it has become the mainstream street lamp selection in China. In spite of this, Huang Guang also has its own drawbacks that cannot be overcome: it is poor color reproduction. All people will have the impression that under the sodium lamp, the color of any object being photographed is yellowish and distorted, which makes the nights of the colorful city “eclipsed” quite a lot.

The goal of the "White School" is natural sunlight. Because it has the best color performance capabilities, and the sun is a warm white light. Therefore, if you can achieve similar white light and daylight, and at the same time take into account the advantages of economic and energy saving yellow light, it will be the ideal night lighting choice. The predecessor of the “White School” was a quartz metal halide lamp. Although it possessed more than three times the color performance capability than Huang Guang, it was also not used on a large scale because of some insurmountable technical problems. Therefore, in this round, the "White School" did not win the "Yellow School".

Until the emergence of the "white army" "new army" warm white city road lighting system, only to find the answer to the question "have both fish and bear." Because warm white light is close to the performance of sunlight, it gives warm feelings to passers-by, and it has better visibility. People can easily distinguish the characteristics of roads and surrounding environment under warm white light.

Compared with yellow light, it can better guarantee the safety and comfort of road driving. Moreover, warm white light is bright because of the light, "full horsepower", it will give people a psychologically adequate sense of security, this sense of security is also a powerful help to prevent urban crime.

Compared with yellow light, the core advantage of warm white light is that it has higher lighting efficiency and less power consumption. The same street light uses at least 10% less electricity than Huang Guang to reduce carbon dioxide emissions by 40%. Therefore, it meets the requirements of environmental protection lighting and green lighting. With the energy crisis and the greenhouse effect becoming increasingly serious, it has great potential for popularization.

The advanced concept of warm white light was first proposed by the world-famous lighting company Philips, and has been widely used in the United States, Britain, Belgium, Norway and other countries.

At present, China is also faced with the problem of how to choose a new generation of street lights that are brighter and more energy-efficient. In order to adapt the system to China's national conditions and accumulate the necessary data for large-scale applications, Philips Lighting and Fudan University have started scientific research and analysis since the beginning of 2006 on the introduction of this system into China.

With the support and cooperation of the Shanghai Electric Power Company, at present, this warm white road lighting system has been installed in the traffic lane of Shanghai’s major traffic lanes on the Caoxibei Road and the bustling commercial street Qipu Road, and has entered the test phase.