The ornamental design for a ledlamp for plantgrowth, as shown and described.
FIG. 1 is a first perspective view of a LED lamp for plant growth showing my new design;
FIG. 2 is a second perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a back view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof;
FIG. 8 is a bottom view thereof;
FIG. 9 is a perspective view of another state of the LED lamp for plant growth thereof; and,
FIG. 10 is an enlarged view of the selected portion in FIG. 1.
The broken lines shown in the drawings depict portions of the LED lamp for plant growth in which the design is embodied that form no part of the claimed design.