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About product and suppliers:
        Alibaba.com offers 5,430 traffic light controller products. About 40% of these are traffic light, 3% are other lights & lighting products, and 1% are access control system. 

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

There are 5,415 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 Mid East. 

You can ensure product safety by selecting from certified suppliers, including 1,984 with ISO9001, 779 with Other, and 711 with OHSAS18001 certification.