What are the terminals? What is a terminal? Said clear is for the convenience of the connection wire terminals and application, it is actually a seal inside the insulation plastic pieces of metal, with a hole at both ends can be inserted into conductor, a screw is used to tighten or loosen, such as two wire, sometimes need to connect, sometimes need to disconnect and connect them can use the terminal at this moment, and you can disconnect at any time, without having to weld them up or intertwined, very convenient.
