In the background of high-speed development and energy-saving emission reduction of the LED lighting, more and more cities replace their street lights by LED lighting products, it is expected that the number of street lights will reach 350 million in 2025. Recently, which cities have opened the installation project of LED street lights? Montreal, Canada, 132,000 street lights will be transformed into LED street lights. It is reported that the city government of Montreal, Canada, will make a decision on replacing its 132,000 street lights with the LED light source products. The city of Montreal has plans to replace its incandescent bulbs with more cheaper and more energy-efficient LED lighting products(mainly 4000K). However, considering that the high color temperature may bring health problems, the city people opposed to it. Many people like 3000K light source products in Toronto and Chicago. Montreal Mayor said that despite the city government has not yet made a decision, but now the voice of giving up the 4000K is high. It is reported that once it is determined which color temperature to use, the city of Montreal may carry out the large-scale project bidding. Singapore plans to replace the street lights of the country with LED street lights before 2022. Singapore Land Transport Authority announced that they plan to replace the island street lights with more energy-efficient LED street lights before 2022, and adopt the new remote monitoring system, switch street lights according to weather conditions. Singapore authorities have launched two pilot projects in the past, in some areas to test high power and general power LED street lights. They began to change the street lights into LED street lights in some areas from 2013, has been installed LED street lights for about 4000 street lights. The Singapore Government Street lights Replacement Program will be carried out in three phases: Stage one will cover 500 roads which are low-traffic and located in residential area, plan to completed by 2018. The second stage, which is concentrated in the central region, it is expected to be completed by 2019. The third stage, replacing the rest of the street lights project and it is expected to be completed before 2022. The Uzbekistan government wants to invest 84.8 billion som for the urban street lights transformation. According to the Uzbek Ministry of Finance news, in order to reduce energy consumption, introduce advanced energy-saving technologies, optimize the lighting system, the Ukrainian government plans appropriate funds 84.8 billion som (about 28.3 million US dollars according to the official exchange rate) in 2017-2019 for upgrading 28 city including the Tashkent city of the street lighting system including 28 city street lighting system. The project involves replacing 8,283 luminaire and optimizing 2779.2 km of lines, plans to replace the existing high-energy-consuming luminaires with modern energy-efficient lighting that used the light-emitting diode technology by 2020 . Taiwan Jia City plan to install LED street lights. Goverment of Chiayi City, Taiwan said that, the city replaced a total of 30000 mercury lights, and installed on the new LED street lights, it is expected to complete 13000 lights in the first stage before the Lunar New Year, the 17,000 lights of the second stage is expected to contract with the contractor in the near future, construction after the Spring Festival. Director of Works, Mr Lee Kin-yin, said that the project costs of the first stage paid from the central grant of $ 130 million. The second project cost is $ 170 million, purchasing 17,000 LED street lights and can save about 25 million yuan using LED street lights each year.