Lamp Holder Design: The ribbed lower section of the E27 screw cap cord grip light holder with double shade ring makes it perfect for creating or fixing lamps Lamp Holder Material : The holder is crafted from corrosion-resistant and anti-rust metal, ensuring durability for prolonged use Dimensions: Holder height is 67.3mm, ring diameter is 48mm, and main body diameter is 39.5mm, making it compact yet versatile for various lighting projects. Easy Installation: Follow straightforward instructions to connect wires to the correct positive and negative poles and assemble all components for a quick, hassle-free setup. Wide Application : The lamp socket is compatible with various E27-based bulbs, making it ideal for DIY pendant lamps or hanging ceiling light projects, adding retro charm and elegance, Manufacturer: LEDSone