Shenzhen Shengji Mains Co. Ltd

Over 20 Years of Experience in the Power Supply Industry
Established in 1998, Shenzhen Shengji Mains Co., Ltd is a professional company with more than 20 years of experience in manufacturing power supplies. Our products include AC/DC switching power adapters, laptop AC adapters, open-frame power supplies, car chargers, LED drivers, travel chargers, and other related items. Our products sell well in the US, the UK, France, South Korea, India, and other countries.

OEM Partnerships with Large-scale Appliance Companies
Our satisfied OEM clients include Gateway and Matrix. We also established partnerships with many large-scale electronics and home appliance companies in China such as Lenovo, Hisense, and Gionee. Thus, we have the resources to serve you too. Additionally, we have factories covering 2,000 square meters and equipped with 12 production lines. Having these assets, we turn out one million units monthly.

Launching Five New Products Monthly
We take product innovation and technology development as very important factors. We have an R&D team composed of 20 engineers and technicians, including many master's degree holders (most of them had studied abroad). This allows us to handle ODM projects effectively. Our sample lead time is five days from design to finished samples. Additionally, we launch two to five new products every month.

Offering Clean, Eco-friendly, and RoHS-marked Products
To this end, we carefully design and strive hard to achieve highly efficient products with low standby power consumption. We test incoming materials carefully through a strict QC process, ensuring all products are fit to bear RoHS marks.

Exporting to the US, Germany, and Israel
With 85% working efficiency, 50MV voltage ripple has a load power consumption of less than 0.3W. Our products sell well across the US, Germany, and Israel.

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