VRCT 4 Pcs B22 to E27 Lamp Base Led Bulb Converter Adapter Ceiling Fan Light Bulbs Socket for Bluetooth Smart Bulb Application - This Socket Convertor Can Be Used To Transforms Your Standard B22 Bulb To Fit In Any E27 Fixture. It Fits Any E27 To The Standard Medium Bulb. Wattage/ Voltage - This Screw Base Can Be Used With A Maximum Watts Of 600W And The Maximum Voltage Of 250V. It Can Be Applied With Multiple Voltages, 12V, 110V-120V, 220V-240V.