I AM TRYING TO REPLACE THE OLD CEILING SWITCH (2 WAY) WITH A NEW ONE, THE HOUSE IS STILL ON OLD TYPE WIRING, I HAVE A RED
WIRE, A BLACK WIRE & EITHER GREEN OR YELLOW (NOT SURE WHICH)
THE OLD SWITCH POSITIONS ARE NOT MARKED (COM,L1,L2) THE SWITCH IS AN OLD MK BROWN TYPE.
CAN ANYONE TELL ME HOW...