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Dongguan Green Ring Electrical Appliance Co., Ltd. is located in Dongguan, the manufacturing capital. It is a private enterprise that integrates research and development, production, sales, and service of lighting conversion lamp holders.
Our company's main products include ceramic lamp holders, conversion lamp holders, lamp holder conversion heads, tube lamp adapters, smart lamp holders, switch sockets, wiring, etc.
The products have obtained third-party certificates or test reports such as UL, CUL, ETL, CETL, UKCA, CE, PSE, FCC, ROHS, etc. Some products have obtained invention or design patents.

The difference between lamp head and lamp holder
The lamp head refers to the metal/plastic interface part at the end of the bulb, which matches the lamp holder to achieve power supply, such as the threaded head (E26/E27) or plug head (GU5.3/GU10) of the LED bulb, which is a component of the bulb and cannot be used separately.
Good news! Our company has been awarded the 2024 Tax Credit A-level Honor Certificate
Recently, the Guangdong Provincial Taxation Bureau of the State Administration of Taxation announced the evaluation of the tax credit rating of each taxpayer for the previous year, and our company has been awarded the 2024 Tax Credit A-level Honor Certificate.
The company has added certification for miscellaneous lamp holders in North America (USA, Canada)
The company has newly added certification for miscellaneous lamp holders in North America (United States, Canada) with the certification mark cETLus. Product models: GU5.3/LH501 (plug-in type), GU5.3/LH502, GU10/LH507, GU10/LH508 (plug-in type).
Mr. Chen