Easy to use: These lamp holder converters are safe to use, easy to install, convenient and practical, allowing you to use lamps more safely and efficiently. B15 to E14 adapter: This bulb socket can be used with specific bulb models, providing a good fit and perfect compatibility. Replacement adapter for LED lamps: The bulb socket adapter allows you to choose from a wider range of LED lamps for your existing lamps or bases, instead of replacing them completely. Good converter conductivity: The bulb adapter socket converter has excellent installation, easy installation and a well-designed structure, providing superior conversion performance. Practical tools: This simple and practical bulb base adapter can add convenience to your life. Product description: The lamp holder adapter is lightweight and compact, made with excellent craftsmanship and safe copper materials for superior durability and practical use. This scientifically and rationally designed bulb adapter simplifies operation and facilitates your best conversion. Specifications: Color: Silver. Material: PP, Copper. Size: 2.10 x 1.70 x 1.70 cm / 0.83 x 0.67 x 0.67 inches. Package includes 8 x bulb adapter converters