Ningxia Longjining Light Instrument Co., Ltd., founded in 1968 and formerly known as Military Industry 4430 Factory, is the birthplace of China's first electronic energy meter. After half a century of development, it has become a high-tech enterprise renowned throughout the country. Longjiningguang is the only instrument manufacturing enterprise in the industry that has both the "National Certified Enterprise Technology Center" and the "National Local Joint Engineering Laboratory" innovation platforms, and is an important component of the national innovation system. For many years, we have been dedicated to the research and production of measuring instruments. Our main products include electric energy meters, water meters, gas meters, heat meters, etc. We can also provide negative control terminal equipment, collectors, concentrators, and energy comprehensive management systems. We are a leading supplier of multi energy measuring products and system solutions in China. Longjiningguang has a modern production plant of nearly 30000 square meters. It is a demonstration unit for digital factories by the National Development and Reform Commission and a pilot enterprise for intelligent manufacturing new models by the Ministry of Industry and Information Technology. The annual comprehensive production capacity of measuring instruments is 30 million units. Longjining Guang's products are marketed both domestically and internationally, with a total of over 40 million units in operation on the internet. For many years, innovation has been the soul of Longji Ningguang's development. Longji Ningguang has established research and development centers in the company's headquarters, Guangdong, Beijing, Hangzhou, and other places. At the same time, Longji Ningguang fully utilizes domestic scientific and technological resources to create a new idea of "combining production, education, and research". It has cooperated with many well-known universities such as The Chinese University of Hong Kong, Tsinghua University, North China Electric Power University, Xi'an Jiaotong University, Xi'an University of Electronic Science and Technology, Lanzhou University, etc., and has established more than ten joint research and development laboratories at home and abroad, forming a research and development team of more than 300 experts from universities to engineering and technical personnel from enterprises. Longjiningguang has always focused on technological innovation in the field of advanced metrology, independently researching and developing, relying on various patented technologies and a keen sense of innovation, and maintaining a leading position in the domestic industry with advanced technology and products. While focusing on hard power, Longjining Guang also emphasizes the cultivation and construction of enterprise R&D soft power. The R&D system is becoming increasingly perfect, and R&D efficiency is constantly improving. R&D has become the core driving force for the continuous development of enterprises.