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About product and suppliers:
        Alibaba.com offers 3,207 12v 20a power supply products. About 58% of these are switching power supply, 1% are uninterrupted power supply (ups), and 1% are sensors. 

A wide variety of 12v 20a power supply options are available to you, such as dual, multiple, and single. You can also choose from 1 - 50w, 51 - 100w, and 101 - 200w. As well as from free samples, paid samples. 

There are 3,201 12v 20a power supply suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Vietnam, which supply 99%, 1%, and 1% of 12v 20a power supply respectively. 

2v 20a power supply products are most popular in North America, Domestic Market, and South America. 

You can ensure product safety by selecting from certified suppliers, including 937 with ISO9001, 454 with Other, and 172 with ISO14001 certification.