Review on 🔌 Ultimate Conversion Solution: Medium Candelabra Reducer Adapter - Enhancing Compatibility and Versatility! by Dave Hammon

I like that these adapters have solid metal female threads in the sockets. Others only have a metal strip, while most threads are plastic. It is also brass plated. The insulating material has not been fully described, but I use LED bulbs, so I don't mind. Tried a few and they worked well, looks like a good design.