High QualityThe E27 lamp holder has passed CE certification and is made of bakelite. It has the characteristics of fire resistance, heat resistance (up to 180C) and corrosion resistance. Classic DesignThe old-fashioned solid bakelite black socket , with an antique and industrial look, can be perfectly matched with bulbs of different shapes and colors. Add a 40mm diameter lampshade and adjust the wire length to achieve different decorative effects. ParameterDiameter 3.9cm, height 5.4cm, center hole diameter 1 cm, outer tooth height 2.1 cm, outer ring diameter 5.6 cm. Rated voltage: 250V, Rated current: 4A, Heat resistance temperature: 180 .Ideal for lighting fixtures in various occasions, retro pendant light, canned jar light, lamp mount and more. ApplicationThe bulb holder is suitable for all E27 lamps: LED incandescent lamps, halogen lamps and energy saving lamps (up to 60W). It can be used for DIY chandelier, living room, kitchen, dining room and office decoration etc. NoteBecause the lamp cap and the lamp shell have buckles, please do not tighten before installation, because the lamp cap is not easy to open after tightening. Product Product The vintage E27 lampholder is made of bakelite, a kind of thermosetting resin, equipped with threaded cable ties to lock and protect the wires, extending its service life. With a Industrial and retro style, this lamp holder is simple in structure, easy to match with a light bulb, rated at 80 watts and 250 volts. CE approved, fully compliant with EU, UK and European safety standards. The black bulb holder can be used with all E27 based bulbs, in especially vintage Edison bulbs, ideal for DIY light fixtures in various occasions. Product Specification Material: Bakelite Color: Black Size: 13*11.6*6cm/5.11*4.56*2.36inch Quantity: 4 Pieces Package Include 4*E27 Black Screws Precautions: 1. Due to the light and screen difference, the color color may be slightly different from the picture. 2. Due to manual measurement, there will be 0.5-2cm difference, please forgive me.