ITEM NAME:Edison Screw E12 CES To E14 SES Light Bulb Adapter Converter Holder Hot Product Description: Product Name: white E12 to E14 lamp cap This adapter is used to connect your E12 small screw socket with the E14 lamp. (the thread diameter of E12 small screw socket is about 12mm; the thread diameter of E14 is about 14mm) Special note: this converter is only used for interface type conversion, without any voltage conversion function Note: 1.Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) 2.The color of the actual items may slightly different from the listing images due to different computer screen, 3.Thanks for your understanding..This adapter is used to connect your E12 small screw socket with the E14 lamp.