I recently removed a flourescent light unit only to find the wires hanging loose and no idea how they were originally wired. There is four seperate cables each containg a black,red and green/yellow wire The light has two switches were it may be switched on or off. I realise one red live will be from consumer unit, and one to next light in ring and one to switch but can you tell me were the fourth cable is from or goes to could it be the second switch? Thanks in advance for any assistance. John 
