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About product and suppliers:
        Alibaba.com offers 238 d50 light source products. About 28% of these are testing equipment, 23% are chandeliers & pendant lights, and 11% are lamp holders & lamp bases. 

A wide variety of d50 light source options are available to you, such as textile testing instrument, universal testing machine, and auto testing machine. You can also choose from electronic, 10w. As well as from free samples. 

There are 238 d50 light source suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of d50 light source respectively. 

D50 light source products are most popular in Western Europe, Domestic Market, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 138 with ISO9001, 18 with Other, and 13 with ISO14001 certification.