Miraclekoo E17 to E12 Lamp Light Bulb Socket Reducer Adapter,5 Pcs
This adapter will reduce the socket from your chandelier/fixtue from a intermediate (E17) size to the smaller Candelabra (E12) size socket.
So you will be able to use a bulb that has a candelabra (E12) base in your fixture that has a intermediate (E17) socket.