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About product and suppliers:
        Alibaba.com offers 5,338 traffic light controller products. About 42% of these are traffic light. 

A wide variety of traffic light controller options are available to you, such as free samples, paid samples. 

There are 5,335 traffic light controller suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Singapore, which supply 99%, 1%, and 1% of traffic light controller respectively. 

Traffic light controller products are most popular in North America, Southeast Asia, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 1,654 with ISO9001, 831 with Other, and 471 with OHSAS18001 certification.