在当今生产、生活中空调被广泛使用，然而传统的定速空调由于耗电量多、开启电流大、运行效率低等缺点，造成了电能大量的浪费。
The air condition is used widely in our life. The traditional air condition is speed changeless with low efficiency and large startup current, and the lots of electric energy are wasted.
目前，城市公共照明已在我国照明耗电中占有很大比重，所以如何在保证基本照明的前提下使耗电量降低成为一大研究难题。
Now the public lighting in the city has become a major power consumer, how to reduce power consumption in the basis of guarantee the basic lighting becomes a main point.
据统计，我国每年大约有百分之十二的电能是消耗在照明上，而城市路灯照明系统的耗电量是其中相当大的一部分。
According to statistics, every year there are about 12 percent of electricity is consumed by lighting in China, and power consumption of the city street light lighting system is a quite major part.
据统计，我国每年大约有百分之十二的电能是消耗在照明上，而城市路灯照明系统的耗电量是其中相当大的一部分。
According to statistics, every year there are about 12 percent of electricity is consumed by lighting in China, and power consumption of the city street light lighting system is a quite major part.
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