
Ningxia Longji Ningguang Instrument Co., Ltd., established in 1968, was originally known as Military Industry Factory 4430. It is a national high-tech enterprise and a national "Little Giant" in specialized and sophisticated innovation. The company has completed the "National Development and Reform Commission Digital Demonstration Factory" and the "National Ministry of Industry and Information Technology Intelligent Manufacturing New Model Application" projects, making it a leader in digital factory construction within the industry. In 2021, the company successfully listed on the "New Third Board" and entered the innovation tier (stock code: 873638), laying the foundation for further growth and development.




80000㎡ +
The product development base covers an area of approximately

200 +
R&D Engineer

300 +
authorized patent

100 +
Software Copyright

Product Center Introduction, to be updated!
Smart Power
In the early 1990s, the first electronic prepaid energy meter in China was born at Longines. From pure electronic energy meters to the seventh generation intelligent energy meters, Longines photoelectric meters are known for their high-precision measurement, high reliability, and long lifespan. Their products are sold in more than 30 provinces, municipalities, and autonomous regions across the country, and are also exported to multiple countries and regions in Asia, Africa, and Latin America. Longines Light - Founded in 1968, it defines a new level of energy measurement with hardcore technology.
Smart Water
Our company focuses on providing a full range of intelligent water meter products, with advantages such as high-precision measurement, ultra long battery life, and stable communication. The product supports automatic collection, real-time monitoring, Bluetooth payment and other functions, providing high-quality measurement products for urban water supply, rural drinking water safety, urban-rural integration and other scenarios. Longjining Light - Utilizing intelligent technology to make every drop of water accurately measurable.
clean energy
Our company focuses on providing a full range of clean heating products for air source heat pumps, with advantages such as full DC frequency conversion, low-temperature strong heating, and high efficiency and energy saving. The product is equipped with a low-temperature enthalpy increasing variable frequency compressor, which provides stable heating in a -30 ℃ severe cold environment. The entire series meets the first level energy efficiency standard and provides clean heating products for residential, villa, office building, hotel, supermarket and other scenarios. Longjining Light - Utilizing the power of nature to warm thousands of households.

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2026-09-02
2026-09-02
2026-09-03
2026-09-03

Longjiningguang takes green intelligent manufacturing as the cornerstone and integrates intelligent technology to practice low-carbon development
Fully fulfill social responsibility and create a sustainable future together.
Contact Us
hotline:0951-3969070/0951-3969115
sales call:0951-3969086/0951-3969017
email:lgg@longimeter.com
Company Address:120 Hongtu South Street, Xixia District Industrial Park
LONGI ELECTRIC CO., LTD
ADDRESS:120 Hongtu South Street, Xixia District Industrial Park
EMAIL:lgg@longimeter.com
TELEPHONE:0951-3969070/0951-3969115
SALES:0951-3969086/0951-3969017
SOLUTION