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About product and suppliers:
        Alibaba.com offers 290,798 dc power supply products. About 37% of these are switching power supply, 1% are industrial power supply, and 1% are voltage regulators/stabilizers. 

A wide variety of dc power supply options are available to you, such as 101 - 200w, >500w, and 301 - 400w. You can also choose from single, triple, and dual. As well as from 110v, 220v, and 380v. And whether dc power supply is free samples, or paid samples. 

There are 289,834 dc power supply suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Hong Kong, which supply 98%, 1%, and 1% of dc power supply respectively. 

Dc power supply products are most popular in North America, Western Europe, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 72,266 with ISO9001, 24,255 with Other, and 8,024 with ISO14001 certification.