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About product and suppliers:
        Alibaba.com offers 153,188 12v power supply products. About 39% of these are switching power supply, 16% are ac/dc adapters, and 5% are power banks. 

A wide variety of 12v power supply options are available to you, such as single, dc, and ac. You can also choose from 301 - 400w, 101 - 200w, and >500w. As well as from 110v, 220v. And whether 12v power supply is plug in, or desktop. 

There are 152,734 12v power supply suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 99%, 1%, and 1% of 12v power supply respectively. 

2v power supply products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 44,174 with ISO9001, 14,210 with Other, and 6,464 with ISO14001 certification.