I bought a one-gang two-way dimmer switch that I want to install in my living room. My ex did the wiring here yonks ago. He is not a qualified electrician - need I say more? I opened up the old switch and found not 2 wires, one red, one black but 3 of each colour!!! 1 red, one black connected at the top of the switch both of which go to the ceiling fixture and two of each colour connected in the holes at the bottom of the switch. Is this solvable or only by someone who really knows what they're doing? 