Changsha Lanhong Electric Technology Co., Ltd. was established in 2008 and is located in the Changsha International Enterprise Center in Hunan Province. It specializes in serving the power industry and adheres to the corporate spirit of "integrity, professionalism, innovation, and win-win" to create value for customers and provide practical solutions. Our main products include: portable handheld partial discharge instrument, lightning arrester online monitoring system, transformer core/clamp grounding online monitoring system, core/clamp current limiting intelligent switching device, substation comprehensive online monitoring system, sleeve comprehensive online monitoring system, SF6 micro water density online monitoring, SF6 gas leakage alarm, partial discharge online monitoring system, winding fiber optic temperature measurement, neutral point DC bias magnetic monitoring, DC insulation online monitoring, line lightning arrester online monitoring, cable sheath comprehensive online monitoring, laser foreign object removal, wireless temperature measurement, switchgear partial discharge online monitoring and other monitoring devices; The products and engineering services for lean remediation of cabinet environments mainly involve cabinet environment products such as intelligent cabinet air conditioners and condensing intelligent dehumidification systems, as well as industrial air conditioner maintenance and cleaning, electrical cabinet polymer moisture-proof sealing and other engineering services.

Since its establishment, the company has been rated as a national high-tech enterprise and has been rated as a "contract abiding and trustworthy" enterprise for several consecutive years, obtaining one invention patent; 9 utility model patents; 15 software copyrights; 5 trademark registration certificates; Received 2 key support projects for science and technology in Changsha City; Received 3 key support projects for science and technology in Yuhua District, Changsha City; One Small Giant Award for Technological Innovation; Completed software enterprise certification, quality management system certification, environmental management system certification, and occupational health management system certification.

The company's products have become the preferred products of China XD Group, TBEA Group, Pinggao Group, and Shandong Electric Power Group, and are widely used in more than 200 substations across the country, including Tianjin 1000kV Haihe Substation, Hunan 800kV Shaoshan Converter Station, Huizhou 500kV Echeng Converter Station, Guizhou 500kV Dushan Substation, Guangdong Jiangmen 220kV Luokeng Substation, Siqian Substation, Mengdong 500kV Hailisen Substation, Hubei Xiangyang 500kV Fancheng Substation, Zhejiang Zhuzhong 220kV Substation, Jiangsu Suqian Shuyang 500kV Substation, etc. The product is widely used in various provinces in China and exported as a primary equipment accessory to Vietnam, Laos, Nigeria and other places.