Hi, I have tried to fit new ceiling lights I am confused by the wiring. I appear to have 3 red, 4 black & 2 earth. The 3 red are not connected and the 4 black (one thick, 3 thin) were connected 1 thick black to live 3 thin black to neutrel & the 2 earth connected together?? I am confused because wiring the new light the same as the old ones they dont work they just trip the fuse in the fuse box.
I have 2 ceiling light in the same room off 1 switch.