Shenzhen ZK Electric Technology Co., Ltd. (here called ZK) is a professional manufacturer of kinds of solar pump inverter, AC drives, variable frequency inverter and soft start, etc. We are not only focus on designing, manufacturing, sales and after sales service for above mentioned products, but also providing customer made automation solution and renewable energy technologies. There are around 50 staffs working in our factor, 50% of them are engineers. Thanks to our great R&D team hardworking and innovation, we mastered core and leading vector control technology for PMSM and IM.