VAPEL is one of the largest manufacturers of switching power supplies in china, certified to ISO9001 and ISO14001.Our catalog contains 900 models of standard, nonstandard, custom AC/DC, DC/DC, DC/AC power supplies from 2Watt to 5,000Watt. Carrying UL, TUV, CE, CSA, CCC marks, VAPEL products are widely used in telecommunications, Industrial control, Traffic, Medicine,Military, and so on.