Zhejiang Yiyen Holding Group Co.,Ltd. is a high-tech enterprise dedicated to the research and development and intelligent manufacture of electronic and electrical technologies, providing core power equipment and system solutions for the Internet of Things for Energy. At present, Yiyen company owns holding companies such as Yiyen Electric Technology Co., Ltd., Shenzhen Yiyen Electric Technology Co., Ltd. , and Lishui Yiyen Electric Technology Co., Ltd. It mainly manufactures Inverter (INV), LiFePO4 Battery Pack (LFP), Energy Storage System (ESS) , Solar Charger controller (MPPT) , AC Charger (CSB) , Automatic Voltage Regulator (AVR) , Power Convert System (PCS) , Active Harmonic Filter (AHF) , Static Var Generator (SVG) , Power Quality Correct Device (SPC) and other series products.

Yiyen upholds the business philosophy of “seeking benefits with quality and development with technology”.

Quality management is the foundation of the development of Yiyen.We control the product quality by constructing a strict quality management system, and has passed certification from international standardized management systems such as the ISO9001 international quality system and safety management system. The main products have obtained certifications of CE , TUV , MSDS ,UN38.3 ,etc.

Technological innovation is the core of the Yiyen’s development. Yiyen equipped with two R&D teams (they are in Shenzhen and Nanjing respectively), and has research cooperation with Tsinghua University and Hohai University. Yiyen has obtained more than 60 product patents. It not only guarantees the advance and innovation of products, but also can continuously bring out more competitive products to meet the market demand on reliability, intelligence and environmental protection of electrical products from customers.