@Mike CT posted:
Solid wire doesn't need connectors.
Agreed on solid. Same is true for stranded wire if the ends are tinned with solder.
When connecting stranded to terminal strips, posts or wire clamps, tinned stranded wire provides better long term electrical conductivity and physical holding force compared to crimped connectors on bare stranded wire. Tinned wire connections can still be removed and relocated easily. Solder has the added benefit of being less expensive than Crimp terminals.