How to remove rust from a light sockets and how to clean them.
Don't use steel wool to clean contacts.The steel wool dust can cause the sockets to short out.
If your light bulb is flickering, it might be because of dirty contacts in the lamp sockets.When you turn on the switch, the contacts in the light sockets complete the electrical circuit between the bulb and lamp.Carbon builds up on the contacts over time.A poor connection between the bulb and contacts is caused by carbon.The carbon will be removed and the lamp will work correctly.
Plug the lamp power cord back into the electrical outlet.The light bulb can be removed.