If you have the bayonet style bulb mount, clean it out
I clean electric contacts with a "nic-sand" tool which is a pen with fiberglass strands- auto body supply or electronic supply
then use a ( plastic safe) contact cleaner such as deoxit-
finish up with a little dieelectric grease
I use adapters to convert all my incandescent bulb fixtures to accept leds
https://www.ebay.com/itm/10X-Socket-...ss!85028!US!-1
these use 1/10th the power for same amount of light and can be found in the 2800kelvin range- which is "browner" and easier on the eyes
similar to:
https://www.amazon.com/Philips-47716...9EAAY5DB9YGA1E
Mike