ITEM NAME:E27 to E40 LED Bulb Base Screw Socket Adapter Converters Lamp Fitting Holder Product Description Description: E27 to E40 Light Adapter Lamp Holder E40 to E27 Lighting Bases Parts Specifications: Rated voltage: 220-230V Material: flame retardant PBT This product is the adapter between E27 and E40 lamp socket, suitable for switching E40 lamp head in E27 lamp holder. Notes: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Included: 1 x lamp holder.E27 to E40 Light Adapter Lamp Holder E40 to E27 Lighting Bases Parts. This product is the adapter between E27 and E40 lamp socket, suitable for switching E40 lamp head in E27 lamp holder. Included: 1 x lamp holder.