Foreword: The lighting industry is becoming a hot topic with the rise of LED concepts. The development trend of the entire industry is improving, and the elimination and replacement of lighting fixtures will be carried out on a large scale worldwide in the next few years. In China, with the development of North and South manufacturing industries, there is a gap between the North and South in the lighting industry. This article uses the statistical data of Tianjin to analyze the regional differences in the lighting industry. In the tide of market economy reform and transformation, the lighting industry in Tianjin has been greatly impacted. The enterprise system has undergone differentiation and reorganization. Many issues such as production and operation scale, technical conditions, industry standards, and rights protection and benefit all require communication and rectification. Before the reform and opening up, under the planned economic system, the city's lighting companies were basically divided into two parts: the lamp industry unit belongs to Tianjin Second Light Industry Bureau, and the light source unit belongs to Tianjin First Light Industry Bureau. With the in-depth development of reform and opening up, under the market economy system, most of the units affiliated to the lighting company and the lighting electrical appliance (bulb) enterprises went bankrupt, split, and reorganized. In addition, with the needs of urban construction and development, a number of urban landscape lighting design, construction and construction units and neon production, advertising and installation companies, product and material distribution and construction and other lighting companies have been derived. According to incomplete statistics (at the end of 2005), Tianjin has nearly 20 lighting production enterprises, more than 30 landscape lighting design and construction units, more than 50 neon production and installation units, and nearly 30 advertising design and installation companies. The annual output value of the production unit is more than 200 million, and the annual turnover of the production and installation unit is nearly 100 million. These units are located in six districts, four outskirts and five counties, development zones, and bonded areas in the city. They have equipment fixed assets worth about 1 billion yuan, and about 10,000 employees. The nature of the enterprise is mainly composed of sole proprietorship, shareholding, and joint venture. The production, operation, technology, contract regulations, rights protection, and overall interests of the enterprise are basically not coordinated and managed by the superior supervisor. Taking the statistics of light industrial electric light sources and lamps and lanterns production from January to May 2007 as an example, it is not difficult to see the difference between North and South China and the situation in Tianjin.
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Current status of the lighting industry in Tianjin 
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