10-Pack GU24 to E26 / E27 Adapters - Converts your Pin Base Fixture (GU24) to Standard Screw-in Bulb Socket (E26/E27) By HOSL
Problem:
My house is outfitted with some pin-based fixtures and the bi-pin bulbs have to be replaced quite often, they are hard to find, high priced and limited styles available.
Solution:
Simply twist one of these adapters into your GU24 pin-based fixture, and you are now free to use any standard screw-in bulb.
Caution: To avoid risk of fire make sure your bulbs do not exceed the recommended wattage indicated on your light fixture.