Qhov zoo:Cov phiaj xwm teeb pom kev hauv nroog can not only create a good lighting environment for people's night activities and enrich people's lives, but also have great significance for prospering the economy, developing tourism, and establishing and expressing the image of a region or city. The outline of the city in daylight is determined by the shape, color and shadow of the building edges. The city lights at night clearly outline the outline of the city, which is obviously different from the surrounding area. When you look at the city from a height at night, The contour lines are complete and clear, directly reflecting the shape and scale of the city.
Disadvantages: Nrog kev nce thiab kev loj hlob ntawmkev teeb pom kev hauv nroog, the power consumption of urban lighting in my country is also rising. It is estimated that urban lighting projects account for about 30 percent of my country's lighting power consumption. In 2006, the power consumption of urban street lamps reached more than 50 billion kWh. However, most of the kev teeb pom kev hauv nroogfeem ntau yog tsawg- teeb pom kev zoo, thiab qhov kev siv hluav taws xob tsawg dua 65 feem pua. Kev pov tseg ntawm hluav taws xob yog qhov hnyav thiab lub zog txuag lub peev xwm yog qhov zoo.
