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About product and suppliers:
        Alibaba.com offers 162,996 12v power supply products. About 39% of these are switching power supply, 1% are lighting transformers. 

A wide variety of 12v power supply options are available to you, such as 1 - 50w, 401 - 500w, and 51 - 100w. You can also choose from dc, single, and dual. As well as from free samples, paid samples. 

There are 162,501 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 Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 41,083 with ISO9001, 12,788 with Other, and 4,946 with ISO14001 certification.