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About product and suppliers:
        Alibaba.com offers 3,964 lumen output products. such as free samples, paid samples. 

There are 3,964 lumen output suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of lumen output respectively. 

Lumen output products are most popular in Western Europe, North America, and South America. 

You can ensure product safety by selecting from certified suppliers, including 1,480 with ISO9001, 686 with Other, and 121 with ISO14001 certification.