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About product and suppliers:
        Alibaba.com offers 250,712 dc power supply products. About 34% of these are switching power supply, 18% are ac/dc adapters, and 8% are inverters & converters. 

A wide variety of dc power supply options are available to you, such as single, dual, and dc. You can also choose from 51 - 100w, >500w, and 401 - 500w. As well as from 110v, 220v, and 380v. And whether dc power supply is indoor, phone, or svc. 

There are 249,414 dc power supply suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 99%, 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 59,743 with ISO9001, 20,128 with Other, and 7,817 with ISO14001 certification.