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About product and suppliers:
        Alibaba.com offers 10,258 adjustable light bulb products. About 17% of these are led bulb lights, 7% are auto lighting system, and 1% are spotlights. 

A wide variety of adjustable light bulb options are available to you, such as ce, ccc, and bv. You can also choose from e27, e11, and eu11. As well as from r7s, candle lights, and other. And whether adjustable light bulb is pure white, warm white, or cool white. 

There are 10,291 adjustable light bulb suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, 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 1,392 with ISO9001, 1,054 with Other, and 263 with ISO14001 certification.