Nanjing Lishida is committed to providing global users with clean and efficient power consumption methods. Through continuous technological research and innovation, it has successfully solved the use of emergency high-power power supplies, and successfully developed rechargeable cordless welding equipment and power supplies for electric tools, providing more efficient and environmentally friendly power consumption solutions for outdoor construction and emergency rescue.

The company currently has conventional mobile power supply brands such as "Suzhoudian and Doushi", and high-end industrial mobile power supply brands such as "Sophim".

Lishida actively responds to the national strategy of vigorously developing new energy, taking the lead in developing mobile construction power supplies and integrated mobile power stations in the field of new energy, successfully solving the long-term problem of no power supply for outdoor construction. This series of products have obtained multiple national invention patents: the company has passed the European Union BSCI social responsibility system certification and ISO9001 quality management system certification, and is the first enterprise in China to draft standards for rechargeable welding machines, In 2019, it obtained the German GS certification for the world's first rechargeable welding machine, and the European Union CE certification for the world's first rechargeable welding machine.