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About product and suppliers:
        Alibaba.com offers 6,788 4kw solar system products. About 52% of these are solar energy systems, 35% are inverters & converters. 

A wide variety of 4kw solar system options are available to you, such as home, commercial, and industrial. You can also choose from normal, mini. As well as from free samples, paid samples. 

There are 6,788 4kw solar system suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of 4kw solar system respectively. 

kw solar system products are most popular in Africa, Mid East, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 4,227 with ISO9001, 1,354 with ISO14001, and 1,199 with Other certification.