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About product and suppliers:
        Alibaba.com offers 10,582 adjustable light bulb products. About 16% of these are led bulb lights, 8% are auto lighting system, and 1% are spotlights. 

A wide variety of adjustable light bulb options are available to you, such as energy star, ccc, and bv. You can also choose from e27, b15, and e11. As well as from pure white, warm white. And whether adjustable light bulb is glass, aluminum, or pc. 

There are 10,620 adjustable light bulb suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Taiwan, which supply 99%, 1%, and 1% of adjustable light bulb respectively. 

Adjustable light bulb products are most popular in North America, Western Europe, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 2,061 with Other, 1,403 with ISO9001, and 293 with ISO/TS16949 certification.
        
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