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It is convenient for people to link the two disconnected wires by this kind wire-connector:to connect the wires,you only need to connect the two jionts of wires to the ports of connector respectively,then screw down the two rotatable entries ,which aviod trouble work of using metal tools additionally and improve the working efficiency.Besides,it can protect the safty of all the line:it stops working automatically when voltage of resistance and fuse innternal is higher than in normal times.At that time,the red lighter will die out so as to remind people of the problems,which ensure the safty of using electricity.
Nanchang university China
Shengwei Cai，Siyuan Yuan，Haitao Dai，Xin Ma