Hi Guys. Could you put me straight please with regard to this wiring configuration. Its a 3g 2w switch. There are three t+e cables feeding their respective switches. Each switch only operates one light each and the lights are not operated by any other switch. The red wire connects to the L1 terminal. A piece of red wire links L1 to L2. All three black wires are connector blocked together (not connected to the switch). This is the bit I don't understand because I thought to operate a light one wire had to go into the switch and one wire came out. Just the one cable comes out of the ceiling to feed the light. If there are junction boxes involved then I assume they are in the ceiling. Could you be kind enough to explain how this system works either by using the hosepipe analogy or by diagram or both. Many Thanks in advance.

Im going back there tomorrow so i'll take me camera and add a pic.