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About product and suppliers:
        678 ac backup power supply products are offered for sale by suppliers on Alibaba.com, of which switching power supply accounts for 16%, power adapters accounts for 1%. 

A wide variety of ac backup power supply options are available to you, such as 110v, 220v. You can also choose from 12v, 24v ac backup power supply, as well as from 1 - 50w, 101 - 200w, and 201 - 300w ac backup power supply, and whether ac backup power supply is single, dual, or multiple. 

There are 670 suppliers who sells ac backup power supply on Alibaba.com, mainly located in Asia. The top countries of suppliers are China, Taiwan, China, from which the percentage of ac backup power supply supply is 99%, 1% respectively.