QCQK 6 PACK Adapters to Use E27/E26 Light Bulbs in a G24-Special made for U.S. Special size design for U.S. Market Features: high quality G24( Female Socket ) to E27 ( Male Plug ) G24 to E27 Adapter Converter for LED/ Halogen / CFL Light Bulb lamp The installation video link: https://youtu.be/ofPvcpMddTk It is easy to install for LED Halogen CFL Light Bulb .