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About product and suppliers:
        Alibaba.com offers 120,394 3mm led products. About 4% of these are diodes, 1% are lamp led, and 1% are street lights. 

A wide variety of 3mm led options are available to you, such as led, signal diode, and rectifier diode. You can also choose from through hole, surface mount. As well as from free samples, paid samples. 

There are 120,224 3mm led suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Hong Kong, which supply 99%, 1%, and 1% of 3mm led respectively. 

mm led products are most popular in North America, Western Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 28,859 with ISO9001, 13,910 with Other, and 4,875 with ISO14001 certification.