Hi, any half bowl plaster uplighter, typically 40w. You're layout is fairly standard, i normally install 1 uplighter on the return wall over the stairs and bounce the light of the stairwell ceiling. (the wall facing you as you come down the stairs.
The wall on your plan with the single door is the wall i would install 2 lights one each side of the door.
Regards,
DS
At what height would you install these:-
For the two either side of the door (ie in the landing)?
For the one on the return wall over the stairs?