(Pack of 5) Yi Lighting E26/E27 to MR16 - Standard E26/E27 Edison Screw Base to MR16 Gu5.3 Base Adapter Holder Converter Melting Point 223C And Plasticity At 125C Does NOT convert VOLTAGE!! High temperature resistant, anti-burning PBT. Suitable for LED/ Halogen/ CFL MR16 light bulb lamp Used for 110V bulbs or 12v system!