Rear kouki lights

Gettin my yoke back on road and just wonderin!!!

in the kouki rear lights they have four tail lights is there four brake lights aswel?? or are the two inner bulbs just the double filament tail/brake bulbs and the outside ones just tail lights!!

. or should they all come on when brake pressed. whoever did the previous wiring on it should be shot. i have all the wiring sorted out now everything is workin.....just wonderin whether all four bulbs should be brake lights or just the two inner ones, looks like all bulbs should be double filament as the wires are there for it. but you'd want to see the mess it was in and what was happenin

all 4 are brake and park as far as i know

good man thanks