High Quality Material: The E27 to E14 Socket Adapter is made of a combination of iron and pp, ensuring durability and longevity. Easy Conversion: This Socket Converter allows for easy conversion from E27 to E14 screw lamp heads, making it suitable for LED lighting bulb conversion. No Soldering Required: The design of this lamp head converter eliminates the need for soldering, making installation quick. Compact Size: With dimensions of 2.8cmx4.3cm/1.10inchx1.69inch, this lamp holder is compact and easy to install without taking up too much space. Package Includes: Each set comes with 10 pieces of the E27 to E14 screw lamp head converters. Size Chart: 2.8cmx4.3cm/1.10inchx1.69inch Package Includes: 10E27 to E14 Socket Adapter Note: Please allow slightly errors due to manual measurement and different monitors.