Specifications: There are a total of 4 E27 sockets, each with a size of 52 * 56mm. The E27 lamp adapter is suitable for all lamps with E27 threads. The voltage is 250V. Material: The e27 retro lamp holder is made of high-quality plastic and aluminum. Has good heat resistance, corrosion resistance, insulation and conductivity. Features: The classic appearance of the lamp holder complements different shapes and colors of light bulbs to match different decorative styles. Easy installation: Simply connect the wires correctly to the positive and negative terminals of the E27 lamp holder, then assemble and tighten them. Application: Retro Edison sockets are suitable for all E27 threaded, LED, incandescent, halogen, and energy-saving bulb models. Suitable for lighting and decoration of ceilings, bedrooms, shops, offices, gardens, etc.