【Universal Bulb Converter】 This practical 2-pack E27 light bulb holder set allows you to easily convert between Edison screw-type and bayonet cap bulbs, providing flexible lighting solutions for various fixtures. 【Premium Construction】 Featuring durable bakelite shells with all-copper internal components and zinc alloy screw rings, these adapters ensure excellent conductivity and long-lasting performance. 【Tool-Free Installation】 Simply screw the converter into your existing E27 socket - no tools required. The secure fit maintains stable connections for safe operation. 【Dual Voltage Compatibility】 Designed for 220-250V working voltage, these adapters reliably support most standard household bulbs while maintaining electrical safety. 【Versatile 2-Pack Value】 Includes two converters (straight) to accommodate different lighting setups, offering double the utility for your home or workspace.