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About product and suppliers:
            15,230 12v power supply products are offered for sale by suppliers on Alibaba.com, of which switching power supply accounts for 29%, power adapters accounts for 10%, and car charger accounts for 1%. 

A wide variety of 12v power supply options are available to you, 

There are 15,923 suppliers who sells 12v power supply on Alibaba.com, mainly located in Asia. The top countries of suppliers are China, Taiwan, China, and Hong Kong S.A.R., from which the percentage of 12v power supply supply is 99%, 1%, and 1% respectively.