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About product and suppliers:
        Alibaba.com offers 2,642 step up & down transformer products. About 90% of these are transformers, 1% are power distribution equipment. 

A wide variety of step up & down transformer options are available to you, such as power, electronic, and high frequency. You can also choose from single, three. As well as from free samples, paid samples. 

There are 2,619 step up & down transformer suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Singapore, which supply 98%, 1%, and 1% of step up & down transformer respectively. 

Step up & down transformer products are most popular in Southeast Asia, Domestic Market, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 1,832 with ISO9001, 429 with ISO14001, and 300 with Other certification.