Ningbo economic&technical development zone Hengda Electrical Co., Ltd., is a provincial hi-tech enterprise specialized in the R & D, manufacture and sales service of lighting connectors, lamp holders, renewable energy such as inverters, solar panels, lithium batteries, solar connectors, junction boxes etc.  Our company covers an area of 11000 square meters, total investment of 10 million US dollars.

Aiming at solar energy industry, based on the concept of "making the unique and the best products", TOP Hengda employed many talented personnel, began to research and develop solar products as early as 2004. We have 45pcs of different kinds of injection machines, 72pcs of different kinds of punching machines, more than 20pcs of ultrasonic welding machines, and many other advanced technology, assembling machines and testing equipment. Continuous developed, innovation goes on as it never ends. Our brand "Top" has won considerable domestic market share and a stable client base overseas. All products are certified with the certificates of C Q C, T U V, UL, V D E, CE, RoHS, S G S and so on. Our factory has obtained the certificates of I S O 9 0 0 1 Quality Management System and I S O1 4 0 0 1 Environmental Management System. With more than 30 years producing experience, our annual output has reached about 10,000,000pcs and we have exported more than 100 countries all over the world. 

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