High-quality lamp holder: The e27 lamp holder is made of high-quality aluminum alloy outside and ceramic inside, which has good insulation and stable performance. The thread is flawless and can be screwed well for Edison e27 screw bulbs CE Certification: The lamp holder has obtained the corresponding CE certification. The material used in the lamp holder is flame-retardant and high-temperature resistant, very stable, and can be used safely [Retro lamp holder]: The retro design of the retro e27 lamp holder is its feature. In the retro design, they each have their own characteristics and many bulbs, see Up high quality and noble Practical Lamp Socket: The simple socket design makes it suitable for many occasions, it can be used for spiral bulb retro Edison e27 and modern LED energy saving lamp. Ideal for hallways, stairs, restaurants, bars and other occasions Easy to Assemble: Beautiful retro lamp holder, easy to assemble. You can connect the socket to the power cord and then plug the bulb into the socket