About product and suppliers:
            23,832 dc power supply products are offered for sale by suppliers on Alibaba.com, of which switching power supply accounts for 30%, power adapters accounts for 16%, and other electrical equipment accounts for 1%. 

A wide variety of dc power supply options are available to you, such as dc, ac. 

There are 20,000 suppliers who sells dc power supply on Alibaba.com, mainly located in Asia. The top countries of suppliers are India, China, and Taiwan, China, from which the percentage of dc power supply supply is 1%, 98%, and 1% respectively.