Compact size: the converter is compact in size, easy to carry and store, easy to use in different environments Robust: the converter has great durability and stability, which ensures long-term reliability This converter is simple and convenient, allowing you to insert and convert without the need for additional tools, which saves time and effort Suitable for offices, hotels, shops and other commercial places, meet the lighting requirements of different specifications of the lamp base E27 to B22 adapter converter can convert B22 lamp holder into E27 lamp holder and replace bulbs with different specifications