The adapter can be used to convert existing E14 sockets to E26/E27 sockets, allowing you to use a wider range of bulbs and light fixtures. It is mainly used to update the existing lighting fixtures in your home, office, retail stores, hotels, and restaurants.SpecificationMaterial: Copper, PlasticColor: WhiteAC Volt: 100 to 250Total Size: 39x65mm / 1.53 inch x 2.56 inchPackage List: 6pcs x E14 to E26/E27 Light Socket AdapterAdvantagePBT shell, flame retardant material, ensuring long lasting performance and safety for your electrical needs.Copper core lamp holders conduct electricity better, reducing the possibility of wires heating up, thereby reducing the risk of fire.Instruction1. Turn off the power supply before installation.2. Remove the existing CFL bulb from the E14 socket.3. Insert the E14 to E26/E27 adapter into the socket.4. Screw in the E26/E27 bulb into the adapter.5. Turn on the power supply and test the bulb.NOTEplease note that it need bypass or remove the ballast, otherwise, it doesn't light on.