Works a treat! Many thanks!
I wasnt far off the solution, i DID follow the wiki which shows red & blue in L2 & yellow & BLACK in L1, so as you know that didnt help in this case lol
thanks again
Dave!
Right all, thanks for taking time to look at this!
What i currently have here is a 2 gang? (i.e. 2 seperate switches in 1 box)
the one switch turns on 2 flourescent tubes down one end of the attic, the other turns on the other 2 down the opposite end!
current setup is
all 3 blacks...