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About product and suppliers:
        Alibaba.com offers 10,125 120w dc power supply products. About 37% of these are switching power supply, 21% are ac/dc adapters, and 1% are industrial power supply. 

A wide variety of 120w dc power supply options are available to you, such as single, quad, and dual. You can also choose from >500w, 101 - 200w, and 301 - 400w. As well as from 110v, 220v, and 380v. And whether 120w dc power supply is plug in, or desktop. 

There are 10,147 120w dc power supply suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 98%, 1%, and 1% of 120w dc power supply respectively. 

20w dc power supply products are most popular in Western Europe, North America, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 2,159 with ISO9001, 578 with Other, and 108 with ISO14001 certification.
        
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