Review on Connectors for Efficient Splicing of Hardwire Conductors by Jared Winebrenner

Incredibly practical! I've replaced switches with smart switches throughout the house and these junction boxes get cramped and the bent caps get in the way, come loose and take up a lot of space. These connectors have many advantages: they take up very little space, make very strong connections, can be disconnected and reconnected many times, and require no tools. These are three one-to-one connections; The same connector type is also available with one-way, two, three, four, five, six and eight port terminations, a much safer and more convenient alternative to twist caps. I'm sold, I love these connectors! Highly recommended.