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About product and suppliers:
            9,479 switching power supply products are offered for sale by suppliers on, of which switching power supply accounts for 55%, power adapters accounts for 10%, and wall switches accounts for 1%. 

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

There are 9,479 suppliers who sells switching power supply on, mainly located in Asia. The top countries of suppliers are China, Taiwan, China, and Hong Kong S.A.R., from which the percentage of switching power supply supply is 99%, 1%, and 1% respectively.