HiqLED UL-listed E26/E27 to GU10 Adapter, Medium Screw (E26/E27 Edison Screw) to GU10 Base Socket Reducer Adapter Converter, Heat-resistant, Anti-burning, No Fire Hazard (3-Pack) UL Certified,High Quality Material,Solid Construction, Durable anti-burning material, heat-resistant & erosion-resistant, maximum voltage: 250V Easily convert US standard E26/E27 medium screw base to GU10 candelabra screw socket Easy to Install, Plug and Play, Durable, just screwing into existing socket, looks like a part of the socket Save you a lot of trouble and money of replacing your original lighting fixtures Simply enlarge your chandelier base to fit standard medium socket