blue light company official website. According to the query knowledge network, Shanghai Blue Light Data Technology Co., Ltd. is a new generation of enterprise-level application provider with open source and open technology as the core, adhering to the concept of "universal access to technology", and can find information in official website of Blue Light Company. Changsha, also known as Star City, is a prefecture-level city, provincial capital and megacity under the jurisdiction of Hunan Province, an important central city in the middle reaches of the Yangtze River and a central city in the Changsha-Zhuzhou-Xiangtan urban agglomeration approved by the State Council.