i am connecting a junction box into an existing 1.5 cable to feed 6 mains downlighters. my question is how do i connect light switch. do i run cable from jb to light switch but only connect red into top of switch and connect neutral and earth into choc blok and then connect red from out going cable to bottom of switch and neutral and earth into other side of choc blok which then runs on to first lamp lights are wired parrallel and there is no ceiling rose also do i need to fit a fused connector into this