The ornamental design for a waterprooftube-shaped LED light fixture, as shown and described.
FIG. 1 is a bottom perspective view of the new design;
FIG. 2 is a top perspective view of the new design;
FIG. 3 is a bottom view of the new design;
FIG. 4 is a top view of the new design;
FIG. 5 is a left side view of the new design; and,
FIG. 6 is a front view of the new design.
The broken lines shown in the drawings are for the purpose of illustrating portions of the article that form no part of the claimed design. The right side view of the new design is a mirror image of the left side view of the new design and is therefore omitted. Similarly, the rear view of the new design is a mirror image of the front view of the new design and is therefore omitted.