The ornamental design for a rearcomponent of a horticulture lighting controller chassis, as shown and described.
FIG. 1 is a perspective view of a rear component of a horticulture lighting controller chassis, as viewed from the front, showing my our design illustrated with contextual electrical components shown in broken line;
FIG. 2 is a right side view of the rear component shown in FIG. 1;
FIG. 3 is a left side view of the rear component shown in FIG. 1;
FIG. 4 is a top elevation view of the rear component shown in FIG. 1;
FIG. 5 is a bottom elevation view of the rear component shown in FIG. 1;
FIG. 6 is a front plan view of the rear component shown in FIG. 1; and,
FIG. 7 is a rear plan view of the rear component shown in FIG. 1.
The broken-line disclosure shown in the views is understood to represent portions of the article in which the claimed design is embodied, but which form no part of the claimed design.