Premium, S.A. is a well established company dedicated to designing and producing power conversion systems, principally Custom Products and Solutions for special segments of the market that usually require High Quality, Hi......Premium, S.A. is a well established company dedicated to designing and producing power conversion systems, principally Custom Products and Solutions for special segments of the market that usually require High Quality, High Reliability and Extremely Resistant products. Our extensive experience allows us to design, manufacture and test custom products to many different stringent specifications. We can also perform tests such as Temperature, Humidity, Shock and Vibration, EMC and so on.