This item is E27 screw light bulb holder, made with premium aluminum material. durable and sturdy. Vintage design, easy to install. You can install the socket and decorate room with families according to your thoughts. If you are not familiar with the electric device, better to get the help from electrician. the most important point. Features - Color: Silver. - Material: Aluminum. - Size: 5.00X5.00X8.50cm/1.97X1.97X3.34inch. - Heat-resistant Temperature: 210 degree centigrade. - E27 vintage socket, with an antique and industrial look, compatible with E27 lamps with a medium base. - The vintage lamp holder has a simple shape, can connect more cables at the same time to meet your needs. - Used most commonly with E27 vintage Edison bulbs and for pendant, retro lighting. - Create antique and classical atmosphere to modern life. Different lampshades added and wire length adjusted could bring various decorative effects. - Easy to install. Connect the wires correctly to the positive or negative pole and then assemble all the parts together. Package list: 2 x light sockets