The ornamental design for a wall or ceilinglamp, as shown and described.
1.1is a front elevation view of the wall or ceiling lamp, showing the design.
1.2is a top-front-left perspective view of the wall or ceiling lamp of 1.1, showing the design.
1.3is a left-front perspective view of the wall or ceiling lamp of 1.1, showing the design.
Features shown on reflective surfaces are not part of the claimed design.
The area within the broken line boundary in Reproduction 1.3depicts a portion (specifically the light bulb) of the wall and ceiling lamp that forms no part of the claimed design.