G23 to E27 Lamp Holder Converter G23 Socket Base for LED Halogen CFL Light Bulb Lamp Adapter G23 to E27|e27 ceramic lamp holder|e27 led bulb dimmablee27 to b22 adapter - AliExpress
Watt-Man 02277 - UBW2WK277P LED STEP LIGHT 277VAC G23 base LED 2 Pin Base CFL Replacements - Walmart.com
7 Watt UVC Ersatzlampe für Wasserklärer mit G23 Sockel