Durable Material: Our retro E27 socket is made of high quality plastic bakelite, which is durable, flame retardant, heat resistant, corrosion resistant, insulating, non-flammable, non-aging, non-damaging and has a long service life. life..Retro Design: The honest E27 lamp holder features a classic black retro design that works with most retro bulbs and pendant lights, perfect for crafts to add a vintage vibe to your home.Specification: Bakelite lamp holder thread is E27, E27 bulb adapter is suitable for all E27 thread lamps, lamp holder diameter is 3.9cm, height is 5 .4 cm, the diameter of the central hole is 1 cm andthe height of the outer tooth is 3.5 cm. /1.37", Ring OD 5.6cm/2.2". Rated voltage: 250V, rated current: 4A, heat resistant temperature: 180.Easy Installation: Just connect the wires correctly to the positive and negative terminals of the E27 lamp head, then assemble and tighten all the parts, you can install and use, saving your time, very practical.Wide Application: Our E27 lampholders are suitable for most light bulbs, LED lamps and DIY pendant lights, which can be widely used in living room, bedroom, hallway, bar, cafe, restaurant, shop, bathroom. bookstore, store,office, garden, lighting. . The surroundings also add to the rustic decor.