GOOD QUALITY:The E26 Medium Screw Light Holders are made of high-quality bakelite and plastic, fitting all E26/E27 light bulbs. They are safe enough for DIY decoration.EASY TO INSTALL:with brass and silver screws for black and white wire connection,then screw-in edison vintage lamp sockets are easy to put various kinds of bulbs on, easily matching any styles of decorationAPPLICATION: Our edison ceiling retro pendant lampholder can be used with different kinds of lights and lamps. For example: LED, CFL, Halogen Incandescent and other E26/E27 lights fixturesLight socket for your steampunk lamp, vintage light, pendant light, industrial light, antique fan, lighting, etc.PACKAGE AND SERVICE: Each package includes 3 pcs of lamp bulb holders and cord grips, that can meet your needs in daily life. If you have any questions on our products, just feel free to contact us and we will give you replacement or refund. package content 3 pcs of E26 Light Sockets. Specifications: This is a good supply for creating vintage or industrial style lighting or just to replace a socket that has gone bad in a lamp or hanging fixture. . Reference Working Voltage / Max. Wattage: 250W-250V, 1/8 IP Cap, medium base sockets with pull chain switch Material: metal + heat resistant plastic Size : 32(dia.) mm (high) 70mm Application: Can be used for all kinds of LED/ Halogen/ CFL Light Bulb lamp. Easy to Install, your room will be filled with great lighting. Suggestion: : WE SUGGEST INSTALLATION BY A LICENSED ELECTRICIAN.: 1. For a safe and secure installation, please ensure that the electrical box to which this fixture will be mounted is properly attached to a structural member of the building. 2. All wires are connected. When unpacking, be careful not to pull with wires as a bad connection may result. 3. Do not connect electricity until your fixture is fully assembled. 4. To reduce the risk of fire, electrical shock, or personal injury, always turn off and unplug fixture and allow it to cool prior to replacing light bulb. 5. Do not touch bulb when fixture is turned on or look directly at lit bulb. Keep flammable materials away from lit bulb.